CINXE.COM
EChO - Wikipedia
<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>EChO - Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available";var cookie=document.cookie.match(/(?:^|; )enwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy", "wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"62dc81bf-8935-4fc7-80a9-84f729262dc7","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"EChO","wgTitle":"EChO","wgCurRevisionId":1223270169,"wgRevisionId":1223270169,"wgArticleId":31272845,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["CS1 Japanese-language sources (ja)","Articles with short description","Short description matches Wikidata","Use British English from January 2014","All stub articles","European Space Agency space probes","Space telescopes","Exoplanet search projects","Cosmic Vision","European space programme stubs","European spacecraft stubs"],"wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"EChO","wgRelevantArticleId":31272845,"wgIsProbablyEditable":true, "wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":false,"wgFlaggedRevsParams":{"tags":{"status":{"levels":1}}},"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":false,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":10000,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q3062047","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics": true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","jquery.makeCollapsible.styles":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","site","mediawiki.page.ready","jquery.makeCollapsible","mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.ReferenceTooltips","ext.gadget.switcher","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups", "ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022","ext.checkUser.clientHints","ext.quicksurveys.init","ext.growthExperiments.SuggestedEditSession","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cjquery.makeCollapsible.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="EChO - Wikipedia"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//en.m.wikipedia.org/wiki/EChO"> <link rel="alternate" type="application/x-wiki" title="Edit this page" href="/w/index.php?title=EChO&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (en)"> <link rel="EditURI" type="application/rsd+xml" href="//en.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://en.wikipedia.org/wiki/EChO"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en"> <link rel="alternate" type="application/atom+xml" title="Wikipedia Atom feed" href="/w/index.php?title=Special:RecentChanges&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-EChO rootpage-EChO skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Jump to content</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Main menu" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Main menu</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Main menu</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">hide</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigation </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Main_Page" title="Visit the main page [z]" accesskey="z"><span>Main page</span></a></li><li id="n-contents" class="mw-list-item"><a href="/wiki/Wikipedia:Contents" title="Guides to browsing Wikipedia"><span>Contents</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:Current_events" title="Articles related to current events"><span>Current events</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Special:Random" title="Visit a randomly selected article [x]" accesskey="x"><span>Random article</span></a></li><li id="n-aboutsite" class="mw-list-item"><a href="/wiki/Wikipedia:About" title="Learn about Wikipedia and how it works"><span>About Wikipedia</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us" title="How to contact Wikipedia"><span>Contact us</span></a></li> </ul> </div> </div> <div id="p-interaction" class="vector-menu mw-portlet mw-portlet-interaction" > <div class="vector-menu-heading"> Contribute </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/Help:Contents" title="Guidance on how to use and edit Wikipedia"><span>Help</span></a></li><li id="n-introduction" class="mw-list-item"><a href="/wiki/Help:Introduction" title="Learn how to edit Wikipedia"><span>Learn to edit</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:Community_portal" title="The hub for editors"><span>Community portal</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:RecentChanges" title="A list of recent changes to Wikipedia [r]" accesskey="r"><span>Recent changes</span></a></li><li id="n-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_upload_wizard" title="Add images or other media for use on Wikipedia"><span>Upload file</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Main_Page" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="The Free Encyclopedia" src="/static/images/mobile/copyright/wikipedia-tagline-en.svg" width="117" height="13" style="width: 7.3125em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Special:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Search Wikipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Search</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Search Wikipedia" aria-label="Search Wikipedia" autocapitalize="sentences" title="Search Wikipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Search</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Personal tools"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Appearance" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Appearance</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en" class=""><span>Donate</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:CreateAccount&returnto=EChO" title="You are encouraged to create an account and log in; however, it is not mandatory" class=""><span>Create account</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:UserLogin&returnto=EChO" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o" class=""><span>Log in</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Log in and more options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personal tools" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personal tools</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en"><span>Donate</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:CreateAccount&returnto=EChO" title="You are encouraged to create an account and log in; however, it is not mandatory"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Create account</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:UserLogin&returnto=EChO" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log in</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/Help:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Contents" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Contents</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Top)</div> </a> </li> <li id="toc-SPEChO" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#SPEChO"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>SPEChO</span> </div> </a> <ul id="toc-SPEChO-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Other_M3_mission_candidates" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Other_M3_mission_candidates"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Other M3 mission candidates</span> </div> </a> <ul id="toc-Other_M3_mission_candidates-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">EChO</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 5 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-5" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">5 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/EChO_(nau_espacial)" title="EChO (nau espacial) – Catalan" lang="ca" hreflang="ca" data-title="EChO (nau espacial)" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Exoplanet_Characterisation_Observatory" title="Exoplanet Characterisation Observatory – French" lang="fr" hreflang="fr" data-title="Exoplanet Characterisation Observatory" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Exoplanet_Characterization_Observatory" title="Exoplanet Characterization Observatory – Italian" lang="it" hreflang="it" data-title="Exoplanet Characterization Observatory" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Exoplanet_Characterisation_Observatory" title="Exoplanet Characterisation Observatory – Russian" lang="ru" hreflang="ru" data-title="Exoplanet Characterisation Observatory" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%B3%BB%E5%A4%96%E8%A1%8C%E6%98%9F%E7%89%B9%E5%BE%81%E8%A7%82%E6%B5%8B%E5%8F%B0" title="系外行星特征观测台 – Chinese" lang="zh" hreflang="zh" data-title="系外行星特征观测台" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q3062047#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/EChO" title="View the content page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:EChO" rel="discussion" title="Discuss improvements to the content page [t]" accesskey="t"><span>Talk</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">English</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Views"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/EChO"><span>Read</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=EChO&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=EChO&action=history" title="Past revisions of this page [h]" accesskey="h"><span>View history</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Tools" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Tools</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/EChO"><span>Read</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=EChO&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=EChO&action=history"><span>View history</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/EChO" title="List of all English Wikipedia pages containing links to this page [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/EChO" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_Upload_Wizard" title="Upload files [u]" accesskey="u"><span>Upload file</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=EChO&oldid=1223270169" title="Permanent link to this revision of this page"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=EChO&action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:CiteThisPage&page=EChO&id=1223270169&wpFormIdentifier=titleform" title="Information on how to cite this page"><span>Cite this page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FEChO"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FEChO"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Print/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=EChO&action=show-download-screen" title="Download this page as a PDF file"><span>Download as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=EChO&printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q3062047" title="Structured data on this page hosted by Wikidata [g]" accesskey="g"><span>Wikidata item</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Proposed space telescope</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><style data-mw-deduplicate="TemplateStyles:r1089065853">.mw-parser-output .ib-spaceflight{width:25em}.mw-parser-output .ib-spaceflight .infobox-header{background:#ddf}.mw-parser-output .ib-edit-wd{float:right}</style><table class="infobox ib-spaceflight"><caption class="infobox-title">EChO</caption><tbody><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th scope="row" class="infobox-label">Mission type</th><td class="infobox-data"><a href="/wiki/Space_observatory" class="mw-redirect" title="Space observatory">Astronomy</a></td></tr><tr><th scope="row" class="infobox-label">Operator</th><td class="infobox-data"><a href="/wiki/ESA" class="mw-redirect" title="ESA">ESA</a></td></tr><tr><th scope="row" class="infobox-label">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="http://sci.esa.int/echo/">sci.esa.int/echo</a></span></td></tr><tr><th scope="row" class="infobox-label">Mission duration</th><td class="infobox-data">4–5 years<sup id="cite_ref-esa_echo_summary_1-0" class="reference"><a href="#cite_note-esa_echo_summary-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-tinetti2012_2-0" class="reference"><a href="#cite_note-tinetti2012-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th colspan="2" class="infobox-header">Spacecraft properties</th></tr><tr><th scope="row" class="infobox-label">Launch mass</th><td class="infobox-data">2,100 kg (4,600 lb)<sup id="cite_ref-esa_echo_spacecraft_3-0" class="reference"><a href="#cite_note-esa_echo_spacecraft-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th colspan="2" class="infobox-header">Start of mission</th></tr><tr><th scope="row" class="infobox-label">Launch date</th><td class="infobox-data">2024<sup id="cite_ref-esa_echo_summary_1-1" class="reference"><a href="#cite_note-esa_echo_summary-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Rocket</th><td class="infobox-data"><a href="/wiki/Soyuz-2_(rocket)#Soyuz_2.1a" class="mw-redirect" title="Soyuz-2 (rocket)">Soyuz STA</a>/<a href="/wiki/Fregat" title="Fregat">Fregat</a><sup id="cite_ref-tinetti2012_2-1" class="reference"><a href="#cite_note-tinetti2012-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Launch site</th><td class="infobox-data"><a href="/wiki/Centre_Spatial_Guyanais" class="mw-redirect" title="Centre Spatial Guyanais">Kourou</a> <a href="/wiki/Ensemble_de_Lancement_Soyouz" title="Ensemble de Lancement Soyouz">ELS</a><sup id="cite_ref-esa_echo_spacecraft_3-1" class="reference"><a href="#cite_note-esa_echo_spacecraft-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Contractor</th><td class="infobox-data"><a href="/wiki/Arianespace" title="Arianespace">Arianespace</a></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th colspan="2" class="infobox-header">Orbital parameters</th></tr><tr><th scope="row" class="infobox-label">Reference system</th><td class="infobox-data"><a href="/wiki/Lagrangian_point#L2" class="mw-redirect" title="Lagrangian point">Sun–Earth L<sub>2</sub></a><sup id="cite_ref-tinetti2012_2-2" class="reference"><a href="#cite_note-tinetti2012-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-esa_echo_spacecraft_3-2" class="reference"><a href="#cite_note-esa_echo_spacecraft-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Regime</th><td class="infobox-data"><a href="/wiki/Halo_orbit" title="Halo orbit">Halo</a> or <a href="/wiki/Lissajous_orbit" title="Lissajous orbit">Lissajous</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Epoch_(astronomy)" title="Epoch (astronomy)">Epoch</a></th><td class="infobox-data">planned</td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th colspan="2" class="infobox-header">Main telescope</th></tr><tr><th scope="row" class="infobox-label">Type</th><td class="infobox-data"><a href="/wiki/Cassegrain_reflector" title="Cassegrain reflector">Cassegrain</a><sup id="cite_ref-tinetti2012_2-3" class="reference"><a href="#cite_note-tinetti2012-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Diameter</th><td class="infobox-data">1.4 m (4.6 ft)<sup id="cite_ref-tinetti2012_2-4" class="reference"><a href="#cite_note-tinetti2012-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Focal length</th><td class="infobox-data">2 m (6.6 ft)<sup id="cite_ref-tinetti2012_2-6" class="reference"><a href="#cite_note-tinetti2012-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Collecting area</th><td class="infobox-data">14 m<sup>2</sup> (150 sq ft)<sup id="cite_ref-tinetti2012_2-7" class="reference"><a href="#cite_note-tinetti2012-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Wavelengths</th><td class="infobox-data">from 0.55 <a href="/wiki/Micrometre" title="Micrometre">μm</a> (<a href="/wiki/Orange_(colour)" title="Orange (colour)">orange</a>)<br />to 11μm (<a href="/wiki/Infrared" title="Infrared">long-infrared</a>)<br />(goal: 0.4 to 16 μm)<sup id="cite_ref-esa_echo_summary_1-2" class="reference"><a href="#cite_note-esa_echo_summary-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-tinetti2012_2-5" class="reference"><a href="#cite_note-tinetti2012-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><td colspan="2" class="infobox-below"><div style="clear:both;" class=""></div></td></tr></tbody></table> <p>The <b>Exoplanet Characterisation Observatory</b> (<b>EChO</b>) was a proposed <a href="/wiki/Space_telescope" title="Space telescope">space telescope</a><sup id="cite_ref-tinetti2012_2-8" class="reference"><a href="#cite_note-tinetti2012-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> as part of the <a href="/wiki/Cosmic_Vision" title="Cosmic Vision">Cosmic Vision</a> roadmap of the <a href="/wiki/European_Space_Agency" title="European Space Agency">European Space Agency</a>, and competed with four other missions for the M3 slot in the programme. On 19 February 2014 the <a href="/wiki/PLATO_(spacecraft)" title="PLATO (spacecraft)">PLATO</a> mission was selected in place of the other candidates in the programme, including EChO.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>EChO would have been the first dedicated mission to investigate exoplanetary atmospheres, addressing the suitability of those planets for life and placing the <a href="/wiki/Solar_System" title="Solar System">Solar System</a> in context. EChO was intended to provide high resolution, multi-wavelength spectroscopic observations. It would have measured the atmospheric composition, temperature and albedo of a representative sample of known exoplanets, constrain models of their internal structure and improve understanding of how planets form and evolve.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> It would have orbited around the L2 <a href="/wiki/Lagrange_point" title="Lagrange point">Lagrange point</a>, 1.5 million km from Earth in the anti-sunward direction. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="SPEChO">SPEChO</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=EChO&action=edit&section=1" title="Edit section: SPEChO"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Following PLATO's M3 selection, a proposal to add EChO on the joint Japanese-European <a href="/wiki/SPICA_(spacecraft)" title="SPICA (spacecraft)">SPICA</a> <a href="/wiki/Far-infrared" class="mw-redirect" title="Far-infrared">far-infrared</a> telescope emerged.<sup id="cite_ref-udencon_6-0" class="reference"><a href="#cite_note-udencon-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> The proposed <i>EChO instrument on SPICA</i> (SPEChO) is a spectrometer covering light wavelengths from 5 to 20 micrometres, and will observe <a href="/wiki/Exoplanet_atmospheres" class="mw-redirect" title="Exoplanet atmospheres">exoplanet atmospheres</a> utilizing transit spectroscopy.<sup id="cite_ref-udencon_6-1" class="reference"><a href="#cite_note-udencon-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> As long with a potential to recover the original scientific goals from EChO, SPEChO will enable SPICA to conduct specialized <a href="/wiki/Exoplanetology" class="mw-redirect" title="Exoplanetology">exoplanetary science</a> studies. SPEChO may also be useful for the science case of galaxies.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> However SPEChO's capabilities overlap with the <a href="/wiki/James_Webb_Space_Telescope" title="James Webb Space Telescope">James Webb Space Telescope</a>'s <a href="/wiki/MIRI_(Mid-Infrared_Instrument)" class="mw-redirect" title="MIRI (Mid-Infrared Instrument)">MIRI (Mid-Infrared Instrument)</a>, therefore SPEChO's advantages over other instruments has become a focus of whether or not to include it on SPICA.<sup id="cite_ref-udencon_6-2" class="reference"><a href="#cite_note-udencon-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Other_M3_mission_candidates">Other M3 mission candidates</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=EChO&action=edit&section=2" title="Edit section: Other M3 mission candidates"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/MarcoPolo-R" class="mw-redirect" title="MarcoPolo-R">MarcoPolo-R</a></li> <li><a href="/wiki/LOFT" title="LOFT">LOFT</a></li> <li><a href="/wiki/STE-QUEST" title="STE-QUEST">STE-QUEST</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=EChO&action=edit&section=3" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-esa_echo_summary-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-esa_echo_summary_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-esa_echo_summary_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-esa_echo_summary_1-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://sci.esa.int/echo/49257-summary/">"EChO mission summary"</a>. <i>EChO website</i>. <a href="/wiki/ESA" class="mw-redirect" title="ESA">ESA</a>. 16 December 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">28 January</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=EChO+website&rft.atitle=EChO+mission+summary&rft.date=2013-12-16&rft_id=http%3A%2F%2Fsci.esa.int%2Fecho%2F49257-summary%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEChO" class="Z3988"></span></span> </li> <li id="cite_note-tinetti2012-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-tinetti2012_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-tinetti2012_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-tinetti2012_2-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-tinetti2012_2-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-tinetti2012_2-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-tinetti2012_2-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-tinetti2012_2-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-tinetti2012_2-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-tinetti2012_2-8"><sup><i><b>i</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFTinettiBeaulieuHenningMeyer2012" class="citation journal cs1">Tinetti, G.; Beaulieu, J. P.; Henning, T.; Meyer, M.; Micela, G.; Ribas, I.; Stam, D.; Swain, M.; Krause, O.; Ollivier, M.; Pace, E.; Swinyard, B.; Aylward, A.; Boekel, R.; Coradini, A.; <a href="/wiki/Th%C3%A9r%C3%A8se_Encrenaz" title="Thérèse Encrenaz">Encrenaz, T.</a>; Snellen, I.; Zapatero-Osorio, M. R.; Bouwman, J.; Cho, J. Y. K.; Coudé De Foresto, V.; Guillot, T.; Lopez-Morales, M.; Mueller-Wodarg, I.; Palle, E.; Selsis, F.; Sozzetti, A.; Ade, P. A. R.; Achilleos, N.; et al. (2012). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20170922043329/http://eprints.ucm.es/37773/1/davidmontes07preprint.pdf">"EChO - Exoplanet Characterisation Observatory"</a> <span class="cs1-format">(PDF)</span>. <i>Experimental Astronomy</i>. <b>34</b> (2): 311. <a href="/wiki/ArXiv_(identifier)" class="mw-redirect" title="ArXiv (identifier)">arXiv</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://arxiv.org/abs/1112.2728">1112.2728</a></span>. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2012ExA....34..311T">2012ExA....34..311T</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1007%2Fs10686-012-9303-4">10.1007/s10686-012-9303-4</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:118578814">118578814</a>. Archived from <a rel="nofollow" class="external text" href="http://eprints.ucm.es/37773/1/davidmontes07preprint.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 2017-09-22<span class="reference-accessdate">. Retrieved <span class="nowrap">2018-10-23</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Experimental+Astronomy&rft.atitle=EChO+-+Exoplanet+Characterisation+Observatory&rft.volume=34&rft.issue=2&rft.pages=311&rft.date=2012&rft_id=info%3Aarxiv%2F1112.2728&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A118578814%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1007%2Fs10686-012-9303-4&rft_id=info%3Abibcode%2F2012ExA....34..311T&rft.aulast=Tinetti&rft.aufirst=G.&rft.au=Beaulieu%2C+J.+P.&rft.au=Henning%2C+T.&rft.au=Meyer%2C+M.&rft.au=Micela%2C+G.&rft.au=Ribas%2C+I.&rft.au=Stam%2C+D.&rft.au=Swain%2C+M.&rft.au=Krause%2C+O.&rft.au=Ollivier%2C+M.&rft.au=Pace%2C+E.&rft.au=Swinyard%2C+B.&rft.au=Aylward%2C+A.&rft.au=Boekel%2C+R.&rft.au=Coradini%2C+A.&rft.au=Encrenaz%2C+T.&rft.au=Snellen%2C+I.&rft.au=Zapatero-Osorio%2C+M.+R.&rft.au=Bouwman%2C+J.&rft.au=Cho%2C+J.+Y.+K.&rft.au=Coud%C3%A9+De+Foresto%2C+V.&rft.au=Guillot%2C+T.&rft.au=Lopez-Morales%2C+M.&rft.au=Mueller-Wodarg%2C+I.&rft.au=Palle%2C+E.&rft.au=Selsis%2C+F.&rft.au=Sozzetti%2C+A.&rft.au=Ade%2C+P.+A.+R.&rft.au=Achilleos%2C+N.&rft.au=Adriani%2C+A.&rft_id=http%3A%2F%2Feprints.ucm.es%2F37773%2F1%2Fdavidmontes07preprint.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEChO" class="Z3988"></span></span> </li> <li id="cite_note-esa_echo_spacecraft-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-esa_echo_spacecraft_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-esa_echo_spacecraft_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-esa_echo_spacecraft_3-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://sci.esa.int/echo/49260-spacecraft/">"EChO spacecraft"</a>. <i>EChO website</i>. <a href="/wiki/ESA" class="mw-redirect" title="ESA">ESA</a>. 30 June 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">28 January</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=EChO+website&rft.atitle=EChO+spacecraft&rft.date=2013-06-30&rft_id=http%3A%2F%2Fsci.esa.int%2Fecho%2F49260-spacecraft%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEChO" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://sci.esa.int/plato/53707-esa-selects-planet-hunting-plato-mission/">"ESA selects planet-hunting PLATO mission"</a>. <a href="/wiki/European_Space_Agency" title="European Space Agency">ESA</a>. 19 February 2014<span class="reference-accessdate">. Retrieved <span class="nowrap">20 March</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=ESA+selects+planet-hunting+PLATO+mission&rft.pub=ESA&rft.date=2014-02-19&rft_id=http%3A%2F%2Fsci.esa.int%2Fplato%2F53707-esa-selects-planet-hunting-plato-mission%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEChO" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFTinettiChoGriffithGrasset2011" class="citation journal cs1">Tinetti, G.; Cho, J. Y. K.; Griffith, C. A.; Grasset, O.; Grenfell, L.; Guillot, T.; Koskinen, T. T.; Moses, J. I.; Pinfield, D.; Tennyson, J.; Tessenyi, M.; Wordsworth, R.; Aylward, A.; Van Boekel, R.; Coradini, A.; <a href="/wiki/Th%C3%A9r%C3%A8se_Encrenaz" title="Thérèse Encrenaz">Encrenaz, T.</a>; Snellen, I.; Zapatero-Osorio, M. R.; Bouwman, J.; Du Foresto, V. C.; Lopez-Morales, M.; Mueller-Wodarg, I.; Pallé, E.; Selsis, F.; Sozzetti, A.; Beaulieu, J. P.; Henning, T.; Meyer, M.; Micela, G.; et al. (2011). <a rel="nofollow" class="external text" href="http://www.ucl.ac.uk/phys/amopp/people/jonathan_tennyson/papers/495a.pdf">"The science of EChO"</a> <span class="cs1-format">(PDF)</span>. <i>Proceedings of the International Astronomical Union</i>. <b>6</b>: 359–370. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2011IAUS..276..359T">2011IAUS..276..359T</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1017%2FS1743921311020448">10.1017/S1743921311020448</a></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Proceedings+of+the+International+Astronomical+Union&rft.atitle=The+science+of+EChO&rft.volume=6&rft.pages=359-370&rft.date=2011&rft_id=info%3Adoi%2F10.1017%2FS1743921311020448&rft_id=info%3Abibcode%2F2011IAUS..276..359T&rft.aulast=Tinetti&rft.aufirst=G.&rft.au=Cho%2C+J.+Y.+K.&rft.au=Griffith%2C+C.+A.&rft.au=Grasset%2C+O.&rft.au=Grenfell%2C+L.&rft.au=Guillot%2C+T.&rft.au=Koskinen%2C+T.+T.&rft.au=Moses%2C+J.+I.&rft.au=Pinfield%2C+D.&rft.au=Tennyson%2C+J.&rft.au=Tessenyi%2C+M.&rft.au=Wordsworth%2C+R.&rft.au=Aylward%2C+A.&rft.au=Van+Boekel%2C+R.&rft.au=Coradini%2C+A.&rft.au=Encrenaz%2C+T.&rft.au=Snellen%2C+I.&rft.au=Zapatero-Osorio%2C+M.+R.&rft.au=Bouwman%2C+J.&rft.au=Du+Foresto%2C+V.+C.&rft.au=Lopez-Morales%2C+M.&rft.au=Mueller-Wodarg%2C+I.&rft.au=Pall%C3%A9%2C+E.&rft.au=Selsis%2C+F.&rft.au=Sozzetti%2C+A.&rft.au=Beaulieu%2C+J.+P.&rft.au=Henning%2C+T.&rft.au=Meyer%2C+M.&rft.au=Micela%2C+G.&rft.au=Ribas%2C+I.&rft_id=http%3A%2F%2Fwww.ucl.ac.uk%2Fphys%2Famopp%2Fpeople%2Fjonathan_tennyson%2Fpapers%2F495a.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEChO" class="Z3988"></span></span> </li> <li id="cite_note-udencon-6"><span class="mw-cite-backlink">^ <a href="#cite_ref-udencon_6-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-udencon_6-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-udencon_6-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20170103132703/http://alma-intweb.mtk.nao.ac.jp/~udencon/symp/symp2014/symp2014-shibai.pdf#page=24">"SPICA計画の経緯・現状"</a> <span class="cs1-format">(PDF)</span> (in Japanese). Japan Radio Astronomy Forum. 28 January 2015. Archived from <a rel="nofollow" class="external text" href="http://alma-intweb.mtk.nao.ac.jp/~udencon/symp/symp2014/symp2014-shibai.pdf#page=24">the original</a> <span class="cs1-format">(PDF)</span> on 2017-01-03<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-01-03</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SPICA%E8%A8%88%E7%94%BB%E3%81%AE%E7%B5%8C%E7%B7%AF%E3%83%BB%E7%8F%BE%E7%8A%B6&rft.pub=Japan+Radio+Astronomy+Forum&rft.date=2015-01-28&rft_id=http%3A%2F%2Falma-intweb.mtk.nao.ac.jp%2F~udencon%2Fsymp%2Fsymp2014%2Fsymp2014-shibai.pdf%23page%3D24&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEChO" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://member.ipmu.jp/kiyoto.yabe/gev2015/proc/galaxy2015-kaneda.pdf">"SPICAの現状"</a> <span class="cs1-format">(PDF)</span>. <a href="/wiki/Institute_for_the_Physics_and_Mathematics_of_the_Universe" class="mw-redirect" title="Institute for the Physics and Mathematics of the Universe">Institute for the Physics and Mathematics of the Universe</a>. 5 June 2015<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-01-03</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SPICA%E3%81%AE%E7%8F%BE%E7%8A%B6&rft.pub=Institute+for+the+Physics+and+Mathematics+of+the+Universe&rft.date=2015-06-05&rft_id=http%3A%2F%2Fmember.ipmu.jp%2Fkiyoto.yabe%2Fgev2015%2Fproc%2Fgalaxy2015-kaneda.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEChO" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://gopira.jp/sym2014b/03_nagao.pdf#page=20">"SPICAサイエンス検討中間報告"</a> <span class="cs1-format">(PDF)</span> (in Japanese). Group of Optical and Infrared Astronomers SPICA task force. 26 November 2014<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-01-03</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SPICA%E3%82%B5%E3%82%A4%E3%82%A8%E3%83%B3%E3%82%B9%E6%A4%9C%E8%A8%8E%E4%B8%AD%E9%96%93%E5%A0%B1%E5%91%8A&rft.pub=Group+of+Optical+and+Infrared+Astronomers+SPICA+task+force&rft.date=2014-11-26&rft_id=http%3A%2F%2Fgopira.jp%2Fsym2014b%2F03_nagao.pdf%23page%3D20&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEChO" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://gopira.jp/sym2014b/05_takeuchi_honda.pdf">"タスクフォースからの提言 近傍銀河および星惑星系形成分野"</a> <span class="cs1-format">(PDF)</span> (in Japanese). Group of Optical and Infrared Astronomers SPICA task force. 26 November 2014<span class="reference-accessdate">. Retrieved <span class="nowrap">2017-01-03</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=%E3%82%BF%E3%82%B9%E3%82%AF%E3%83%95%E3%82%A9%E3%83%BC%E3%82%B9%E3%81%8B%E3%82%89%E3%81%AE%E6%8F%90%E8%A8%80+%E8%BF%91%E5%82%8D%E9%8A%80%E6%B2%B3%E3%81%8A%E3%82%88%E3%81%B3%E6%98%9F%E6%83%91%E6%98%9F%E7%B3%BB%E5%BD%A2%E6%88%90%E5%88%86%E9%87%8E&rft.pub=Group+of+Optical+and+Infrared+Astronomers+SPICA+task+force&rft.date=2014-11-26&rft_id=http%3A%2F%2Fgopira.jp%2Fsym2014b%2F05_takeuchi_honda.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEChO" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=EChO&action=edit&section=4" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://sci.esa.int/echo/">ESA Website for EChO</a></li> <li><a rel="nofollow" class="external text" href="http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=48467">ESA Announcement Article</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist dd dd:first-child::before,.mw-parser-output .hlist dd dt:first-child::before,.mw-parser-output .hlist dd li:first-child::before,.mw-parser-output .hlist dt dd:first-child::before,.mw-parser-output .hlist dt dt:first-child::before,.mw-parser-output .hlist dt li:first-child::before,.mw-parser-output .hlist li dd:first-child::before,.mw-parser-output .hlist li dt:first-child::before,.mw-parser-output .hlist li li:first-child::before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child::after,.mw-parser-output .hlist dd dt:last-child::after,.mw-parser-output .hlist dd li:last-child::after,.mw-parser-output .hlist dt dd:last-child::after,.mw-parser-output .hlist dt dt:last-child::after,.mw-parser-output .hlist dt li:last-child::after,.mw-parser-output .hlist li dd:last-child::after,.mw-parser-output .hlist li dt:last-child::after,.mw-parser-output .hlist li li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}</style><style data-mw-deduplicate="TemplateStyles:r1236075235">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox-group,.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow{padding:0.25em 1em;line-height:1.5em;text-align:center}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background-color:#fdfdfd}.mw-parser-output .navbox-list{line-height:1.5em;border-color:#fdfdfd}.mw-parser-output .navbox-list-with-group{text-align:left;border-left-width:2px;border-left-style:solid}.mw-parser-output tr+tr>.navbox-abovebelow,.mw-parser-output tr+tr>.navbox-group,.mw-parser-output tr+tr>.navbox-image,.mw-parser-output tr+tr>.navbox-list{border-top:2px solid #fdfdfd}.mw-parser-output .navbox-title{background-color:#ccf}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="European_Space_Agency" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:European_Space_Agency" title="Template:European Space Agency"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:European_Space_Agency" title="Template talk:European Space Agency"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:European_Space_Agency" title="Special:EditPage/Template:European Space Agency"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="European_Space_Agency" style="font-size:114%;margin:0 4em"><a href="/wiki/European_Space_Agency" title="European Space Agency">European Space Agency</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Spaceport" title="Spaceport">Space Centres</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Guiana_Space_Centre" title="Guiana Space Centre">Guiana</a></li> <li><a href="/wiki/Esrange" title="Esrange">Esrange</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Launch_vehicle" title="Launch vehicle">Launch vehicles</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ariane_6" title="Ariane 6">Ariane 6</a></li> <li><a href="/wiki/Vega_C" title="Vega C">Vega C</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Facilities</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/European_Space_Operations_Centre" title="European Space Operations Centre">Space Operations Centre</a></li> <li><a href="/wiki/European_Space_Research_and_Technology_Centre" title="European Space Research and Technology Centre">Space Research and Technology Centre</a></li> <li><a href="/wiki/ESA_Centre_for_Earth_Observation" title="ESA Centre for Earth Observation">ESA Centre for Earth Observation</a></li> <li><a href="/wiki/European_Astronaut_Centre" title="European Astronaut Centre">European Astronaut Centre</a></li> <li><a href="/wiki/European_Space_Astronomy_Centre" title="European Space Astronomy Centre">Space Astronomy Centre</a></li> <li><a href="/wiki/European_Centre_for_Space_Applications_and_Telecommunications" title="European Centre for Space Applications and Telecommunications">Space Applications and Telecommunications Centre</a></li> <li><a href="/wiki/Concurrent_Design_Facility" title="Concurrent Design Facility">Concurrent Design Facility</a></li> <li><a href="/wiki/Space_Telescope_European_Coordinating_Facility" title="Space Telescope European Coordinating Facility">Space Telescope European Coordinating Facility</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Communications</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ESTRACK" title="ESTRACK">ESTRACK</a></li> <li><a href="/wiki/European_Data_Relay_System" title="European Data Relay System">European Data Relay System</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Programmes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Artemis_program" title="Artemis program">Artemis</a> <ul><li><a href="/wiki/European_Service_Module" title="European Service Module">ESM</a></li></ul></li> <li><a href="/wiki/Aurora_programme" title="Aurora programme">Aurora</a></li> <li><a href="/wiki/Copernicus_Programme" title="Copernicus Programme">Copernicus</a></li> <li><a href="/wiki/Columbus_(ISS_module)" title="Columbus (ISS module)">Columbus</a></li> <li><a href="/wiki/CryoSat" title="CryoSat">CryoSat</a></li> <li><a href="/wiki/European_Geostationary_Navigation_Overlay_Service" title="European Geostationary Navigation Overlay Service">EGNOS</a></li> <li><a href="/wiki/Galileo_(satellite_navigation)" title="Galileo (satellite navigation)">Galileo</a></li> <li><a href="/wiki/European_Programme_for_Life_and_Physical_Sciences_in_Space" title="European Programme for Life and Physical Sciences in Space">ELIPS</a></li> <li><a href="/wiki/ExoMars" title="ExoMars">ExoMars</a></li> <li><a href="/wiki/Future_Launchers_Preparatory_Programme" title="Future Launchers Preparatory Programme">FLPP</a></li> <li><a href="/wiki/Living_Planet_Programme" title="Living Planet Programme">Living Planet Programme</a></li> <li><a href="/wiki/Space_Situational_Awareness_Programme" title="Space Situational Awareness Programme">Space Situational Awareness Programme</a></li> <li><a href="/wiki/European_Space_Agency_Science_Programme" title="European Space Agency Science Programme">Science Programme</a> <ul><li><a href="/wiki/Cosmic_Vision" title="Cosmic Vision">Cosmic Vision</a></li></ul></li> <li><a href="/wiki/Programme_for_Reusable_In-orbit_Demonstrator_in_Europe" title="Programme for Reusable In-orbit Demonstrator in Europe">PRIDE</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Predecessors</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/European_Launcher_Development_Organisation" title="European Launcher Development Organisation">European Launcher Development Organisation</a></li> <li><a href="/wiki/European_Space_Research_Organisation" title="European Space Research Organisation">European Space Research Organisation</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Related topics</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Arianespace" title="Arianespace">Arianespace</a></li> <li><a href="/wiki/ESA_Television" title="ESA Television">ESA Television</a></li> <li><a href="/wiki/EUMETSAT" title="EUMETSAT">EUMETSAT</a></li> <li><a href="/wiki/European_Space_Camp" title="European Space Camp">European Space Camp</a></li> <li><a href="/wiki/Global_Energy_and_Water_Exchanges" title="Global Energy and Water Exchanges">GEWEX</a></li> <li><a href="/wiki/Planetary_Science_Archive" title="Planetary Science Archive">Planetary Science Archive</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible expanded navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="text-align:center;"><div id="Projects_and_missions" style="font-size:114%;margin:0 4em"><a href="/wiki/List_of_European_Space_Agency_programs_and_missions" class="mw-redirect" title="List of European Space Agency programs and missions">Projects and missions</a></div></th></tr><tr><th scope="row" class="navbox-group" style="text-align:center;;width:1%">Science</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:7.0em;text-align: center;">Solar physics</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ISEE-2" title="ISEE-2">ISEE-2</a> (1977–1987)</li> <li><a href="/wiki/Ulysses_(spacecraft)" title="Ulysses (spacecraft)">Ulysses</a> (1990–2009)</li> <li><a href="/wiki/Solar_and_Heliospheric_Observatory" title="Solar and Heliospheric Observatory">SOHO</a> (1995–present)</li> <li><a href="/wiki/Cluster_II_(spacecraft)" title="Cluster II (spacecraft)">Cluster II</a> (2000–2024)</li> <li><a href="/wiki/Solar_Orbiter" title="Solar Orbiter">Solar Orbiter</a> (2020–present)</li> <li><i><a href="/wiki/ESA_Vigil" title="ESA Vigil">Vigil</a></i> (2031)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:7.0em;text-align: center;">Planetary science</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Giotto_(spacecraft)" title="Giotto (spacecraft)">Giotto</a> (1985–1992)</li> <li><a href="/wiki/Huygens_(spacecraft)" title="Huygens (spacecraft)">Huygens</a> (1997–2005)</li> <li><a href="/wiki/SMART-1" title="SMART-1">SMART-1</a> (2003–2006)</li> <li><a href="/wiki/Mars_Express" title="Mars Express">Mars Express</a> (2003–present)</li> <li><a href="/wiki/Rosetta_(spacecraft)" title="Rosetta (spacecraft)">Rosetta</a>/<a href="/wiki/Philae_(spacecraft)" title="Philae (spacecraft)">Philae</a> (2004–2016)</li> <li><a href="/wiki/Venus_Express" title="Venus Express">Venus Express</a> (2005–2014)</li> <li><a href="/wiki/Trace_Gas_Orbiter" title="Trace Gas Orbiter">ExoMars <i>Trace Gas Orbiter</i></a> (2016–present)</li> <li><a href="/wiki/BepiColombo" title="BepiColombo">BepiColombo</a> (2018–present)</li> <li><a href="/wiki/Jupiter_Icy_Moons_Explorer" title="Jupiter Icy Moons Explorer">Jupiter Icy Moons Explorer</a> (2023)</li> <li><a href="/wiki/Hera_(spacecraft)" class="mw-redirect" title="Hera (spacecraft)">Hera</a> (2024)</li> <li><a href="/wiki/Rosalind_Franklin_(rover)" title="Rosalind Franklin (rover)"><i>Rosalind Franklin</i> rover</a> (2028)</li> <li><i><a href="/wiki/Comet_Interceptor" title="Comet Interceptor">Comet Interceptor</a></i> (2029)</li> <li><i><a href="/wiki/EnVision" title="EnVision">EnVision</a></i> (2031)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:7.0em;text-align: center;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Astronomy and<br />cosmology</div></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cos-B" title="Cos-B">Cos-B</a> (1975–1982)</li> <li><a href="/wiki/International_Ultraviolet_Explorer" title="International Ultraviolet Explorer">IUE</a> (1978–1996)</li> <li><a href="/wiki/EXOSAT" title="EXOSAT">EXOSAT</a> (1983–1986)</li> <li><a href="/wiki/Hipparcos" title="Hipparcos">Hipparcos</a> (1989–1993)</li> <li><a href="/wiki/Hubble_Space_Telescope" title="Hubble Space Telescope">Hubble Space Telescope</a> (1990–present)</li> <li><a href="/wiki/European_Retrievable_Carrier" title="European Retrievable Carrier">Eureca</a> (1992–93)</li> <li><a href="/wiki/Infrared_Space_Observatory" title="Infrared Space Observatory">ISO</a> (1995–1998)</li> <li><a href="/wiki/XMM-Newton" title="XMM-Newton">XMM-Newton</a> (1999–present)</li> <li><a href="/wiki/INTEGRAL" title="INTEGRAL">INTEGRAL</a> (2002–present)</li> <li><a href="/wiki/CoRoT" title="CoRoT">CoRoT</a> (2006–13)</li> <li><a href="/wiki/Planck_(spacecraft)" title="Planck (spacecraft)">Planck</a> (2009–2013)</li> <li><a href="/wiki/Herschel_Space_Observatory" title="Herschel Space Observatory">Herschel</a> (2009–2013)</li> <li><a href="/wiki/Gaia_(spacecraft)" title="Gaia (spacecraft)">Gaia</a> (2013–present)</li> <li><a href="/wiki/CHEOPS" title="CHEOPS">CHEOPS</a> (2019–present)</li> <li><a href="/wiki/James_Webb_Space_Telescope" title="James Webb Space Telescope">James Webb Space Telescope</a> (2021–present)</li> <li><a href="/wiki/Euclid_(spacecraft)" title="Euclid (spacecraft)">Euclid</a> (2023–present)</li> <li><i><a href="/wiki/PLATO_(spacecraft)" title="PLATO (spacecraft)">PLATO</a></i> (2026)</li> <li><i><a href="/wiki/ARIEL" title="ARIEL">ARIEL</a></i> (2029)</li> <li><i><a href="/wiki/ARRAKIHS" title="ARRAKIHS">ARRAKIHS</a></i> (2030s)</li> <li><i><a href="/wiki/Advanced_Telescope_for_High_Energy_Astrophysics" title="Advanced Telescope for High Energy Astrophysics">Athena</a></i> (2035)</li> <li><i><a href="/wiki/Laser_Interferometer_Space_Antenna" title="Laser Interferometer Space Antenna">LISA</a></i> (2035)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:7.0em;text-align: center;">Earth observation</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Copernicus_Programme" title="Copernicus Programme">Copernicus</a> (1988–present)</li> <li><a href="/wiki/Meteosat#First_generation" title="Meteosat">Meteosat First Generation</a> (1977–1997)</li> <li><a href="/wiki/European_Remote-Sensing_Satellite" title="European Remote-Sensing Satellite">ERS-1</a> (1991–2000)</li> <li><a href="/wiki/European_Remote-Sensing_Satellite" title="European Remote-Sensing Satellite">ERS-2</a> (1995–2011)</li> <li><a href="/wiki/Meteosat#Second_Generation" title="Meteosat">Meteosat Second Generation</a> (2002–present)</li> <li><a href="/wiki/Envisat" title="Envisat">Envisat</a> (2002–2012)</li> <li><a href="/wiki/Double_Star_(satellite)" title="Double Star (satellite)">Double Star</a> (2003–2007)</li> <li><a href="/wiki/MetOp" title="MetOp">MetOp</a> (2006–present)</li> <li><a href="/wiki/GOCE" title="GOCE">GOCE</a> (2009–2013)</li> <li><a href="/wiki/Soil_Moisture_and_Ocean_Salinity" title="Soil Moisture and Ocean Salinity">SMOS</a> (2009–present)</li> <li><a href="/wiki/CryoSat-2" title="CryoSat-2">CryoSat-2</a> (2010–present)</li> <li><a href="/wiki/Swarm_(spacecraft)" title="Swarm (spacecraft)">Swarm</a> (2013–present)</li> <li><a href="/wiki/Sentinel-1" title="Sentinel-1">Sentinel-1</a> / <a href="/wiki/Sentinel-1A" title="Sentinel-1A">1A</a> / <a href="/wiki/Sentinel-1B" title="Sentinel-1B">1B</a> (2014–present)</li> <li><a href="/wiki/Sentinel-2" title="Sentinel-2">Sentinel-2</a> / <a href="/wiki/Sentinel-2A" title="Sentinel-2A">2A</a> / <a href="/wiki/Sentinel-2B" title="Sentinel-2B">2B</a> / <a href="/wiki/Sentinel-2C" class="mw-redirect" title="Sentinel-2C">2C</a> (2015–present)</li> <li><a href="/wiki/Sentinel-3" title="Sentinel-3">Sentinel-3</a> / <a href="/wiki/Sentinel-3A" title="Sentinel-3A">3A</a> / <a href="/wiki/Sentinel-3B" title="Sentinel-3B">3B</a> (2016–present)</li> <li><a href="/wiki/Sentinel-5_Precursor" title="Sentinel-5 Precursor">Sentinel-5 Precursor</a> (2017–present)</li> <li><a href="/wiki/ADM-Aeolus" title="ADM-Aeolus">ADM-Aeolus</a> (2018–present)</li> <li><i><a href="/wiki/Biomass_(satellite)" title="Biomass (satellite)">Biomass</a></i> (2024)</li> <li><i><a href="/wiki/EarthCARE" title="EarthCARE">EarthCARE</a></i> (2024)</li> <li><i><a href="/wiki/Meteosat_Third_Generation" class="mw-redirect" title="Meteosat Third Generation">Meteosat Third Generation</a></i> (<i><a href="/wiki/Sentinel-4" title="Sentinel-4">Sentinel-4</a></i>) (2024)</li> <li><i><a href="/wiki/ALTIUS" title="ALTIUS">ALTIUS</a></i> (2025)</li> <li><i><a href="/wiki/FLEX_(satellite)" title="FLEX (satellite)">FLEX</a></i> (2025)</li> <li><i><a href="/wiki/MetOp-SG-A" class="mw-redirect" title="MetOp-SG-A">MetOp-SG-A</a></i> (2025)</li> <li><i><a href="/wiki/MetOp-SG-B" class="mw-redirect" title="MetOp-SG-B">MetOp-SG-B</a></i> (2025)</li> <li><i><a href="/wiki/SMILE_(spacecraft)" title="SMILE (spacecraft)">SMILE</a></i> (2025)</li> <li><i><a href="/wiki/Far-infrared_Outgoing_Radiation_Understanding_and_Monitoring" title="Far-infrared Outgoing Radiation Understanding and Monitoring">FORUM</a></i> (2027)</li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align:center;;width:1%"><a href="/wiki/European_contribution_to_the_International_Space_Station" title="European contribution to the International Space Station">ISS contributions</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Columbus_(ISS_module)" title="Columbus (ISS module)">Columbus</a> (2008–present)</li> <li><a href="/wiki/Automated_Transfer_Vehicle" title="Automated Transfer Vehicle">Automated Transfer Vehicle</a> (2008–2015)</li> <li><a href="/wiki/Cupola_(ISS_module)" title="Cupola (ISS module)">Cupola</a> (2010)</li> <li><a href="/wiki/European_Robotic_Arm" title="European Robotic Arm">European Robotic Arm</a> (2021)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align:center;;width:1%">Telecommunications</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/European_Space_Research_Organisation#GEOS" title="European Space Research Organisation">GEOS 2</a> (1978)</li> <li><a href="/wiki/Olympus-1" title="Olympus-1">Olympus-1</a> (1989–1993)</li> <li><a href="/wiki/Artemis_(satellite)" title="Artemis (satellite)">Artemis</a> (2001–present)</li> <li><a href="/wiki/GIOVE-A" class="mw-redirect" title="GIOVE-A">GIOVE-A</a> (2005–present)</li> <li><a href="/wiki/GIOVE-B" class="mw-redirect" title="GIOVE-B">GIOVE-B</a> (2008–present)</li> <li><a href="/wiki/HYLAS-1" title="HYLAS-1">HYLAS-1</a> (2010–present)</li> <li><a href="/wiki/Galileo_(satellite_navigation)#In-Orbit_Validation_(IOV)_satellites" title="Galileo (satellite navigation)">Galileo IOV</a> (2011–present)</li> <li><a href="/wiki/Galileo_(satellite_navigation)#Full_Operational_Capability_(FOC)_satellites" title="Galileo (satellite navigation)">Galileo FOC</a> (2014–present)</li> <li><a href="/wiki/European_Geostationary_Navigation_Overlay_Service" title="European Geostationary Navigation Overlay Service">EGNOS</a></li> <li><a href="/wiki/European_Data_Relay_System" title="European Data Relay System">European Data Relay System</a> (2016–present)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align:center;;width:1%"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Technology<br />demonstrators</div></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Atmospheric_Reentry_Demonstrator" title="Atmospheric Reentry Demonstrator">ARD</a> (1998)</li> <li><a href="/wiki/PROBA" title="PROBA">PROBA-1</a> (2001–present)</li> <li><a href="/wiki/Young_Engineers%27_Satellite_2" title="Young Engineers' Satellite 2">YES2</a> (2007)</li> <li><a href="/wiki/PROBA-2" title="PROBA-2">PROBA-2</a> (2009–present)</li> <li><a href="/wiki/PROBA-V" title="PROBA-V">PROBA-V</a> (2013–present)</li> <li><a href="/wiki/Intermediate_eXperimental_Vehicle" title="Intermediate eXperimental Vehicle">IXV</a> (2015)</li> <li><a href="/wiki/LISA_Pathfinder" title="LISA Pathfinder">LISA Pathfinder</a> (2015–2017)</li> <li><a href="/wiki/OPS-SAT" title="OPS-SAT">OPS-SAT</a> (2019–present)</li> <li><i><a href="/wiki/PROBA-3" title="PROBA-3">PROBA-3</a></i> (2024)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align:center;;width:1%">Cancelled<br />and proposed</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/AIDA_(mission)" class="mw-redirect" title="AIDA (mission)">AIDA</a></li> <li><a href="/wiki/Ariane_5_ME" class="mw-redirect" title="Ariane 5 ME">Ariane 5 ME</a></li> <li><a href="/wiki/Calathus_Mission" title="Calathus Mission">Calathus Mission</a></li> <li><a href="/wiki/Ceres_Polar_Lander" title="Ceres Polar Lander">Ceres Polar Lander</a></li> <li><a href="/wiki/Columbus_Man-Tended_Free_Flyer" title="Columbus Man-Tended Free Flyer">Columbus Man-Tended Free Flyer</a></li> <li><a href="/wiki/CSTS" title="CSTS">CSTS</a></li> <li><a href="/wiki/Darwin_(spacecraft)" title="Darwin (spacecraft)">Darwin Mission</a></li> <li><a href="/wiki/Don_Quijote_(spacecraft)" title="Don Quijote (spacecraft)">Don Quijote</a></li> <li><a href="/wiki/E.Deorbit" title="E.Deorbit">e.Deorbit</a></li> <li><a class="mw-selflink selflink">EChO</a></li> <li><a href="/wiki/Eddington_(spacecraft)" title="Eddington (spacecraft)">Eddington</a></li> <li><a href="/wiki/European_eXPErimental_Re-entry_Testbed" title="European eXPErimental Re-entry Testbed">EXPERT</a></li> <li><a href="/wiki/Hermes_(spacecraft)" title="Hermes (spacecraft)">Hermes</a></li> <li><a href="/wiki/Hopper_(spacecraft)" title="Hopper (spacecraft)">Hopper</a></li> <li><a href="/wiki/LOFT" title="LOFT">LOFT</a></li> <li><a href="/wiki/Lunar_Lander_(spacecraft)" title="Lunar Lander (spacecraft)">Lunar Lander</a></li> <li><a href="/wiki/Marco_Polo_(spacecraft)" title="Marco Polo (spacecraft)">Marco Polo</a></li> <li><a href="/wiki/MarcoPolo-R" class="mw-redirect" title="MarcoPolo-R">MarcoPolo-R</a></li> <li><a href="/wiki/Mars_sample_return_mission" class="mw-redirect" title="Mars sample return mission">Mars sample return mission</a></li> <li><a href="/wiki/ODINUS" title="ODINUS">ODINUS</a></li> <li><a href="/wiki/Phootprint" title="Phootprint">Phootprint</a></li> <li><a href="/wiki/SOLARIS" class="mw-redirect" title="SOLARIS">SOLARIS</a></li> <li><a href="/wiki/SPICA_(spacecraft)" title="SPICA (spacecraft)">SPICA</a></li> <li><a href="/wiki/STE-QUEST" title="STE-QUEST">STE-QUEST</a></li> <li><a href="/wiki/THESEUS_(satellite)" class="mw-redirect" title="THESEUS (satellite)">THESEUS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align:center;;width:1%">Failed</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cluster_(spacecraft)" class="mw-redirect" title="Cluster (spacecraft)">Cluster</a></li> <li><a href="/wiki/CryoSat-1" title="CryoSat-1">CryoSat-1</a></li> <li><a href="/wiki/European_Space_Research_Organisation#GEOS" title="European Space Research Organisation">GEOS 1</a></li> <li><a href="/wiki/Schiaparelli_EDM" title="Schiaparelli EDM">Schiaparelli EDM</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>Future missions in <i>italics</i> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <b><a href="/wiki/Category:European_Space_Agency" title="Category:European Space Agency">Category</a></b></li> <li><span class="noviewer" typeof="mw:File"><span title="Commons page"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/12px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/24px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span> <a href="https://commons.wikimedia.org/wiki/Category:European_Space_Agency" class="extiw" title="commons:Category:European Space Agency"><b>Commons</b></a></li> <li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Wikinews-logo.svg" class="mw-file-description" title="Wikinews page"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/16px-Wikinews-logo.svg.png" decoding="async" width="16" height="9" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/24px-Wikinews-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/24/Wikinews-logo.svg/32px-Wikinews-logo.svg.png 2x" data-file-width="759" data-file-height="415" /></a></span> <b><a href="https://en.wikinews.org/wiki/Category:European_Space_Agency" class="extiw" title="wikinews:Category:European Space Agency">Wikinews</a></b></li> <li><span class="noviewer" typeof="mw:File"><span title="WikiProject"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/37/People_icon.svg/16px-People_icon.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/37/People_icon.svg/24px-People_icon.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/37/People_icon.svg/32px-People_icon.svg.png 2x" data-file-width="100" data-file-height="100" /></span></span> <a href="/wiki/Wikipedia:WikiProject_Europe/ESA" title="Wikipedia:WikiProject Europe/ESA">WikiProject</a></li></ul></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Space_telescopes" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Space_observatories" title="Template:Space observatories"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Space_observatories" title="Template talk:Space observatories"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Space_observatories" title="Special:EditPage/Template:Space observatories"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Space_telescopes" style="font-size:114%;margin:0 4em"><a href="/wiki/Space_telescope" title="Space telescope">Space telescopes</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Operating</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Radio_astronomy" title="Radio astronomy">Radio and Microwave</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chang%27e_4#Science_payloads" title="Chang'e 4">NCLE</a> <span style="font-size:85%;">(since 2018)</span></li> <li><a href="/wiki/Solar_Orbiter" title="Solar Orbiter">Solar Orbiter</a> <span style="font-size:85%;">(since 2020)</span></li> <li><a href="/wiki/STEREO" title="STEREO">STEREO</a> <span style="font-size:85%;">(since 2006)</span></li> <li><a href="/wiki/Queqiao_relay_satellite" class="mw-redirect" title="Queqiao relay satellite">Queqiao</a> <span style="font-size:85%;">(since 2018)</span></li> <li><a href="/wiki/Wind_(spacecraft)" title="Wind (spacecraft)">Wind</a> <span style="font-size:85%;">(since 1994)</span></li> <li><a href="/wiki/Queqiao-2_relay_satellite" class="mw-redirect" title="Queqiao-2 relay satellite">Queqiao 2</a> <span style="font-size:85%;">(since 2024)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Infrared_telescope" title="Infrared telescope">Infrared</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Odin_(satellite)" title="Odin (satellite)">Odin</a> <span style="font-size:85%;">(since 2001)</span></li> <li><a href="/wiki/SOLAR_(ISS)" title="SOLAR (ISS)">SOLAR</a> <span style="font-size:85%;">(since 2008)</span></li> <li><a href="/wiki/James_Webb_Space_Telescope" title="James Webb Space Telescope">James Webb</a> <span style="font-size:85%;">(since 2022)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Optical_telescope" title="Optical telescope">Optical</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Stars-AO" title="Stars-AO">Aoi</a> <span style="font-size:85%;">(since 2018)</span></li> <li><a href="/wiki/Astrosat" class="mw-redirect" title="Astrosat">Astrosat</a> <span style="font-size:85%;">(since 2015)</span></li> <li><a href="/wiki/BRITE" title="BRITE">BRITE</a> constellation <span style="font-size:85%;">(since 2013)</span></li> <li><a href="/wiki/Chinese_H-alpha_Solar_Explorer" title="Chinese H-alpha Solar Explorer">CHASE</a> <span style="font-size:85%;">(since 2021)</span></li> <li><a href="/wiki/CHEOPS" title="CHEOPS">CHEOPS</a> <span style="font-size:85%;">(since 2019)</span></li> <li><a href="/wiki/Deep_Space_Climate_Observatory" title="Deep Space Climate Observatory">DSCOVR</a> <span style="font-size:85%;">(since 2015)</span></li> <li><a href="/wiki/Euclid_(spacecraft)" title="Euclid (spacecraft)">Euclid</a> <span style="font-size:85%;">(since 2023)</span></li> <li><a href="/wiki/Hayabusa2#Mission_extension" title="Hayabusa2">Hayabusa2</a> <span style="font-size:85%;">(since 2021)</span></li> <li><a href="/wiki/Gaia_(spacecraft)" title="Gaia (spacecraft)">Gaia</a> <span style="font-size:85%;">(since 2013)</span></li> <li><a href="/wiki/HiRISE" title="HiRISE">HiRISE</a> <span style="font-size:85%;">(since 2005)</span></li> <li><a href="/wiki/Hubble_Space_Telescope" title="Hubble Space Telescope">Hubble</a> <span style="font-size:85%;">(since 1990)</span></li> <li><a href="/wiki/Hinode_(satellite)" title="Hinode (satellite)">Hinode (Solar-B)</a> <span style="font-size:85%;">(since 2006)</span></li> <li><a href="/wiki/Near_Earth_Object_Surveillance_Satellite" title="Near Earth Object Surveillance Satellite">NEOSSat</a> <span style="font-size:85%;">(since 2013)</span></li> <li><a href="/wiki/Odin_(satellite)" title="Odin (satellite)">Odin</a> <span style="font-size:85%;">(since 2001)</span></li> <li><a href="/wiki/Solar_Dynamics_Observatory" title="Solar Dynamics Observatory">SDO</a> <span style="font-size:85%;">(since 2010)</span></li> <li><a href="/wiki/Solar_and_Heliospheric_Observatory" title="Solar and Heliospheric Observatory">SOHO</a> <span style="font-size:85%;">(since 1995)</span></li> <li><a href="/wiki/SOLAR_(ISS)" title="SOLAR (ISS)">SOLAR</a> <span style="font-size:85%;">(since 2008)</span></li> <li><a href="/wiki/Neil_Gehrels_Swift_Observatory" title="Neil Gehrels Swift Observatory">Swift</a> <span style="font-size:85%;">(since 2004)</span></li> <li><a href="/wiki/Transiting_Exoplanet_Survey_Satellite" title="Transiting Exoplanet Survey Satellite">TESS</a> <span style="font-size:85%;">(since 2018)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Ultraviolet_astronomy" title="Ultraviolet astronomy">Ultraviolet</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aditya-L1" title="Aditya-L1">Aditya-L1</a> <span style="font-size:85%;">(since 2023)</span></li> <li><a href="/wiki/Advanced_Space-based_Solar_Observatory" title="Advanced Space-based Solar Observatory">ASO-S</a> <span style="font-size:85%;">(since 2022)</span></li> <li><a href="/wiki/Astrosat" class="mw-redirect" title="Astrosat">Astrosat</a> <span style="font-size:85%;">(since 2015)</span></li> <li><a href="/wiki/Hibari_(satellite)" class="mw-redirect" title="Hibari (satellite)">Hibari</a> <span style="font-size:85%;">(since 2021)</span></li> <li><a href="/wiki/Hinode_(satellite)" title="Hinode (satellite)">Hinode (Solar-B)</a> <span style="font-size:85%;">(since 2006)</span></li> <li><a href="/wiki/Interface_Region_Imaging_Spectrograph" title="Interface Region Imaging Spectrograph">IRIS</a> <span style="font-size:85%;">(since 2013)</span></li> <li><a href="/wiki/Solar_Dynamics_Observatory" title="Solar Dynamics Observatory">SDO</a> <span style="font-size:85%;">(since 2010)</span></li> <li><a href="/wiki/Solar_and_Heliospheric_Observatory" title="Solar and Heliospheric Observatory">SOHO</a> <span style="font-size:85%;">(since 1995)</span></li> <li><a href="/wiki/SOLAR_(ISS)" title="SOLAR (ISS)">SOLAR</a> <span style="font-size:85%;">(since 2008)</span></li> <li><a href="/wiki/Solar_Orbiter" title="Solar Orbiter">Solar Orbiter</a> <span style="font-size:85%;">(since 2020)</span></li> <li><a href="/wiki/STEREO" title="STEREO">STEREO</a> <span style="font-size:85%;">(since 2006)</span></li> <li><a href="/wiki/Neil_Gehrels_Swift_Observatory" title="Neil Gehrels Swift Observatory">Swift</a> <span style="font-size:85%;">(since 2004)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/X-ray_astronomy" title="X-ray astronomy">X-ray</a> and <a href="/wiki/Gamma-ray_astronomy" title="Gamma-ray astronomy">Gamma-ray</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Calorimetric_Electron_Telescope" title="Calorimetric Electron Telescope">CALET</a> <span style="font-size:85%;">(since 2015)</span></li> <li><a href="/wiki/Chandra_X-ray_Observatory" title="Chandra X-ray Observatory">Chandra (AXAF)</a> <span style="font-size:85%;">(since 1999)</span></li> <li><a href="/wiki/Dark_Matter_Particle_Explorer" title="Dark Matter Particle Explorer">DAMPE</a> <span style="font-size:85%;">(since 2015)</span></li> <li><a href="/wiki/Einstein_Probe" title="Einstein Probe">Einstein Probe</a> <span style="font-size:85%;">(since 2024)</span></li> <li><a href="/wiki/Hard_X-ray_Modulation_Telescope" title="Hard X-ray Modulation Telescope">HXMT (Insight)</a> <span style="font-size:85%;">(since 2017)</span></li> <li><a href="/wiki/INTEGRAL" title="INTEGRAL">INTEGRAL</a> <span style="font-size:85%;">(since 2002)</span></li> <li><a href="/wiki/Fermi_Gamma-ray_Space_Telescope" title="Fermi Gamma-ray Space Telescope">Fermi</a> <span style="font-size:85%;">(since 2008)</span></li> <li><a href="/wiki/Gravitational_Wave_High-energy_Electromagnetic_Counterpart_All-sky_Monitor" title="Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor">GECAM</a> <span style="font-size:85%;">(since 2020)</span></li> <li><a href="/wiki/IXPE" title="IXPE">IXPE</a> <span style="font-size:85%;">(since 2021)</span></li> <li><a href="/wiki/Spektr-RG" title="Spektr-RG">Spektr-RG</a> <span style="font-size:85%;">(since 2019)</span></li> <li><a href="/wiki/Space_Variable_Objects_Monitor" title="Space Variable Objects Monitor">SVOM</a> <span style="font-size:85%;">(since 2024)</span></li> <li><a href="/wiki/Neil_Gehrels_Swift_Observatory" title="Neil Gehrels Swift Observatory">Swift</a> <span style="font-size:85%;">(since 2004)</span></li> <li><a href="/wiki/Max_Valier_(satellite)" title="Max Valier (satellite)">Max Valier Sat</a> <span style="font-size:85%;">(since 2017)</span></li> <li><a href="/wiki/MAXI_(ISS_Experiment)" class="mw-redirect" title="MAXI (ISS Experiment)">MAXI</a> <span style="font-size:85%;">(since 2009)</span></li> <li><a href="/wiki/Miniature_X-ray_Solar_Spectrometer_CubeSat" title="Miniature X-ray Solar Spectrometer CubeSat">MinXSS-2</a> <span style="font-size:85%;">(since 2018)</span></li> <li><a href="/wiki/Neutron_Star_Interior_Composition_Explorer" title="Neutron Star Interior Composition Explorer">NICER</a> <span style="font-size:85%;">(since 2017)</span></li> <li><a href="/wiki/NuSTAR" title="NuSTAR">NuSTAR</a> <span style="font-size:85%;">(since 2012)</span></li> <li><a href="/wiki/Lobster_Eye_Imager_for_Astronomy" title="Lobster Eye Imager for Astronomy">LEIA</a> <span style="font-size:85%;">(since 2022)</span></li> <li><a href="/wiki/X-Ray_Imaging_and_Spectroscopy_Mission" title="X-Ray Imaging and Spectroscopy Mission">XRISM</a> <span style="font-size:85%;">(since 2023)</span></li> <li><a href="/wiki/XPoSat" title="XPoSat">XPoSat</a> <span style="font-size:85%;">(since 2024)</span></li> <li><a href="/wiki/XMM-Newton" title="XMM-Newton">XMM-Newton</a> <span style="font-size:85%;">(since 1999)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other (particle<br />or unclassified)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Advanced_Composition_Explorer" title="Advanced Composition Explorer">ACE</a> <span style="font-size:85%;">(since 1997)</span></li> <li><a href="/wiki/Alpha_Magnetic_Spectrometer" title="Alpha Magnetic Spectrometer">AMS-02</a> <span style="font-size:85%;">(since 2011)</span></li> <li><a href="/wiki/Calorimetric_Electron_Telescope" title="Calorimetric Electron Telescope">CALET</a> <span style="font-size:85%;">(since 2015)</span></li> <li><a href="/wiki/Dark_Matter_Particle_Explorer" title="Dark Matter Particle Explorer">DAMPE</a> <span style="font-size:85%;">(since 2015)</span></li> <li><a href="/wiki/Interstellar_Boundary_Explorer" title="Interstellar Boundary Explorer">IBEX</a> <span style="font-size:85%;">(since 2008)</span></li> <li><a href="/wiki/Cosmic_Ray_Energetics_and_Mass_Experiment#ISS-CREAM" title="Cosmic Ray Energetics and Mass Experiment">ISS-CREAM</a> <span style="font-size:85%;">(since 2017)</span></li> <li><a href="/wiki/JEM-EUSO" title="JEM-EUSO">Mini-EUSO</a> <span style="font-size:85%;">(since 2019)</span></li> <li><a href="/wiki/Solar_and_Heliospheric_Observatory" title="Solar and Heliospheric Observatory">SOHO</a> <span style="font-size:85%;">(since 1995)</span></li> <li><a href="/wiki/Solar_Orbiter" title="Solar Orbiter">Solar Orbiter</a> <span style="font-size:85%;">(since 2020)</span></li> <li><a href="/wiki/STEREO" title="STEREO">STEREO</a> <span style="font-size:85%;">(since 2006)</span></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Planned</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/PETREL" title="PETREL">PETREL</a> <span style="font-size:85%;">(2025)</span></li> <li><a href="/wiki/SPHEREx" title="SPHEREx">SPHEREx</a> <span style="font-size:85%;">(2025)</span></li> <li><a href="/wiki/JEM-EUSO" title="JEM-EUSO">K-EUSO</a> <span style="font-size:85%;">(2026)</span></li> <li><a href="/wiki/Nancy_Grace_Roman_Space_Telescope" title="Nancy Grace Roman Space Telescope">Nancy Grace Roman Space Telescope</a> <span style="font-size:85%;">(2026)</span></li> <li><a href="/wiki/PLATO_(spacecraft)" title="PLATO (spacecraft)">PLATO</a> <span style="font-size:85%;">(2026)</span></li> <li><a href="/wiki/Xuntian" title="Xuntian">Xuntian</a> <span style="font-size:85%;">(2026)</span></li> <li><a href="/wiki/Compton_Spectrometer_and_Imager" title="Compton Spectrometer and Imager">COSI</a> <span style="font-size:85%;">(2027)</span></li> <li><a href="/wiki/Luna_26#Scientific_payload" title="Luna 26">LORD</a> <span style="font-size:85%;">(2027)</span></li> <li><a href="/wiki/NEO_Surveyor" title="NEO Surveyor">NEO Surveyor</a> <span style="font-size:85%;">(2027)</span></li> <li><a href="/wiki/JASMINE_(satellite)" class="mw-redirect" title="JASMINE (satellite)">JASMINE</a> <span style="font-size:85%;">(2028)</span></li> <li><a href="/wiki/Solar-C_EUVST" class="mw-redirect" title="Solar-C EUVST">Solar-C EUVST</a> <span style="font-size:85%;">(2028)</span></li> <li><a href="/wiki/ARIEL" title="ARIEL">ARIEL</a> <span style="font-size:85%;">(2029)</span></li> <li><a href="/wiki/Spektr-UV" title="Spektr-UV">Spektr-UV</a> <span style="font-size:85%;">(2030)</span></li> <li><a href="/wiki/UVEX" title="UVEX">UVEX</a> <span style="font-size:85%;">(2030)</span></li> <li><a href="/wiki/Spektr-M" title="Spektr-M">Spektr-M</a> <span style="font-size:85%;">(2030+)</span></li> <li><a href="/wiki/LiteBIRD" title="LiteBIRD">LiteBIRD</a> <span style="font-size:85%;">(2032)</span></li> <li><a href="/wiki/Taiji_Program_in_Space" class="mw-redirect" title="Taiji Program in Space">Taiji</a> <span style="font-size:85%;">(2033)</span></li> <li><a href="/wiki/Advanced_Telescope_for_High_Energy_Astrophysics" title="Advanced Telescope for High Energy Astrophysics">Athena</a> <span style="font-size:85%;">(2035)</span></li> <li><a href="/wiki/Laser_Interferometer_Space_Antenna" title="Laser Interferometer Space Antenna">LISA</a> <span style="font-size:85%;">(2035)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_proposed_space_observatories" class="mw-redirect" title="List of proposed space observatories">Proposed</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Arcus_(satellite)" title="Arcus (satellite)">Arcus</a></li> <li><a href="/w/index.php?title=Astro-1_Telescope&action=edit&redlink=1" class="new" title="Astro-1 Telescope (page does not exist)">Astro-1 Telescope</a></li> <li><a href="/wiki/AstroSat-2" title="AstroSat-2">AstroSat-2</a></li> <li><a href="/wiki/Exoplanetary_Circumstellar_Environments_and_Disk_Explorer" title="Exoplanetary Circumstellar Environments and Disk Explorer">EXCEDE</a></li> <li><a href="/wiki/Fresnel_Imager" class="mw-redirect" title="Fresnel Imager">Fresnel Imager</a></li> <li><a href="/wiki/FOCAL_(spacecraft)" title="FOCAL (spacecraft)">FOCAL</a></li> <li><a href="/wiki/Galileo_Solar_Space_Telescope" title="Galileo Solar Space Telescope">GSST-PMM</a></li> <li><a href="/wiki/Habitable_Exoplanets_Observatory" title="Habitable Exoplanets Observatory">HabEx</a></li> <li><a href="/wiki/Habitable_Worlds_Observatory" title="Habitable Worlds Observatory">HWO</a></li> <li><a href="/wiki/Hypertelescope" class="mw-redirect" title="Hypertelescope">Hypertelescope</a></li> <li><a href="/wiki/International_Lunar_Observatory" title="International Lunar Observatory">ILO-1</a></li> <li><a href="/wiki/MAXI_(ISS_experiment)#iWF-MAXI" title="MAXI (ISS experiment)">iWF-MAXI</a></li> <li><a href="/wiki/JEM-EUSO" title="JEM-EUSO">JEM-EUSO</a></li> <li><a href="/wiki/Lunar_Ultraviolet_Cosmic_Imager" title="Lunar Ultraviolet Cosmic Imager">LUCI</a></li> <li><a href="/wiki/Large_Ultraviolet_Optical_Infrared_Surveyor" title="Large Ultraviolet Optical Infrared Surveyor">LUVOIR</a></li> <li><a href="/wiki/Lynx_X-ray_Observatory" title="Lynx X-ray Observatory">Lynx</a></li> <li><a href="/wiki/Nano-JASMINE" title="Nano-JASMINE">Nano-JASMINE</a></li> <li><a href="/wiki/Nautilus_Deep_Space_Observatory" title="Nautilus Deep Space Observatory">Nautilus Deep Space Observatory</a></li> <li><a href="/wiki/New_Worlds_Mission" title="New Worlds Mission">New Worlds Mission</a></li> <li><a href="/wiki/2012_National_Reconnaissance_Office_space_telescope_donation_to_NASA" title="2012 National Reconnaissance Office space telescope donation to NASA">NRO donation to NASA</a></li> <li><a href="/wiki/Orbiting_Binary_Black_Hole_Investigation_Satellite" title="Orbiting Binary Black Hole Investigation Satellite">ORBIS</a></li> <li><a href="/wiki/Origins_Space_Telescope" title="Origins Space Telescope">OST</a></li> <li><a href="/wiki/FOXSI_Sounding_Rocket" title="FOXSI Sounding Rocket">PhoENiX</a></li> <li><a href="/w/index.php?title=Solar-D&action=edit&redlink=1" class="new" title="Solar-D (page does not exist)">Solar-D</a></li> <li><a href="/wiki/Space_Solar_Telescope" title="Space Solar Telescope">Space Solar Telescope</a></li> <li><a href="/wiki/Telescope_for_Habitable_Exoplanets_and_Interstellar/Intergalactic_Astronomy" title="Telescope for Habitable Exoplanets and Interstellar/Intergalactic Astronomy">THEIA</a></li> <li><a href="/wiki/THESEUS_(satellite)" class="mw-redirect" title="THESEUS (satellite)">THESEUS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Retired</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/AGILE_(satellite)" title="AGILE (satellite)">AGILE</a> <span style="font-size:85%;">(2007–2024)</span></li> <li><a href="/wiki/Akari_(satellite)" title="Akari (satellite)">Akari (Astro-F)</a> <span style="font-size:85%;">(2006–2011)</span></li> <li><a href="/wiki/Array_of_Low_Energy_X-ray_Imaging_Sensors" title="Array of Low Energy X-ray Imaging Sensors">ALEXIS</a> <span style="font-size:85%;">(1993–2005)</span></li> <li><a href="/wiki/Alouette_1" title="Alouette 1">Alouette 1</a> <span style="font-size:85%;">(1962–1972)</span></li> <li><a href="/wiki/Ariel_1" title="Ariel 1">Ariel 1</a> <span style="font-size:85%;">(1962, 1964)</span></li> <li><a href="/wiki/Ariel_2" title="Ariel 2">Ariel 2</a> <span style="font-size:85%;">(1964)</span></li> <li><a href="/wiki/Ariel_3" title="Ariel 3">Ariel 3</a> <span style="font-size:85%;">(1967–1969)</span></li> <li><a href="/wiki/Ariel_4" title="Ariel 4">Ariel 4</a> <span style="font-size:85%;">(1971–1972)</span></li> <li><a href="/wiki/Ariel_5" title="Ariel 5">Ariel 5</a> <span style="font-size:85%;">(1974–1980)</span></li> <li><a href="/wiki/Ariel_6" class="mw-redirect" title="Ariel 6">Ariel 6</a> <span style="font-size:85%;">(1979–1982)</span></li> <li><a href="/wiki/ASTERIA_(spacecraft)" title="ASTERIA (spacecraft)">ASTERIA</a> <span style="font-size:85%;">(2017–2019)</span></li> <li><a href="/wiki/Apollo_Telescope_Mount" title="Apollo Telescope Mount">ATM</a> <span style="font-size:85%;">(1973–1974)</span></li> <li><a href="/wiki/Advanced_Satellite_for_Cosmology_and_Astrophysics" title="Advanced Satellite for Cosmology and Astrophysics">ASCA (Astro-D)</a> <span style="font-size:85%;">(1993–2000)</span></li> <li><a href="/wiki/STS-35" title="STS-35">Astro-1</a> <span style="font-size:85%;">(1990)</span> <ul><li><a href="/wiki/Broad_Band_X-ray_Telescope" title="Broad Band X-ray Telescope">BBXRT</a></li> <li><a href="/wiki/Hopkins_Ultraviolet_Telescope" title="Hopkins Ultraviolet Telescope">HUT</a></li></ul></li> <li><a href="/wiki/STS-67" title="STS-67">Astro-2</a> (<a href="/wiki/Hopkins_Ultraviolet_Telescope" title="Hopkins Ultraviolet Telescope">HUT</a>) <span style="font-size:85%;">(1995)</span></li> <li><a href="/wiki/Astron_(spacecraft)" title="Astron (spacecraft)">Astron</a> <span style="font-size:85%;">(1983–1991)</span></li> <li><a href="/wiki/Astronomical_Netherlands_Satellite" title="Astronomical Netherlands Satellite">ANS</a> <span style="font-size:85%;">(1974–1976)</span></li> <li><a href="/wiki/BeppoSAX" title="BeppoSAX">BeppoSAX</a> <span style="font-size:85%;">(1996–2003)</span></li> <li><a href="/wiki/CHIPSat" class="mw-redirect" title="CHIPSat">CHIPSat</a> <span style="font-size:85%;">(2003–2008)</span></li> <li><a href="/wiki/Compton_Gamma_Ray_Observatory" title="Compton Gamma Ray Observatory">Compton (CGRO)</a> <span style="font-size:85%;">(1991–2000)</span></li> <li><a href="/wiki/CoRoT" title="CoRoT">CoRoT</a> <span style="font-size:85%;">(2006–2013)</span></li> <li><a href="/wiki/Cos-B" title="Cos-B">Cos-B</a> <span style="font-size:85%;">(1975–1982)</span></li> <li><a href="/wiki/Cosmic_Background_Explorer" title="Cosmic Background Explorer">COBE</a> <span style="font-size:85%;">(1989–1993)</span></li> <li><a href="/wiki/CXBN-2" title="CXBN-2">CXBN-2</a> <span style="font-size:85%;">(2017–2019)</span></li> <li><a href="/wiki/STS-54#Mission_highlights" title="STS-54">DXS</a> <span style="font-size:85%;">(1993)</span></li> <li><a href="/wiki/EPOXI#EPOCh" title="EPOXI">EPOCh</a> <span style="font-size:85%;">(2008)</span></li> <li><a href="/wiki/EPOXI" title="EPOXI">EPOXI</a> <span style="font-size:85%;">(2010)</span></li> <li><a href="/wiki/Explorer_11" title="Explorer 11">Explorer 11</a> <span style="font-size:85%;">(1961)</span></li> <li><a href="/wiki/EXOSAT" title="EXOSAT">EXOSAT</a> <span style="font-size:85%;">(1983–1986)</span></li> <li><a href="/wiki/Extreme_Ultraviolet_Explorer" title="Extreme Ultraviolet Explorer">EUVE</a> <span style="font-size:85%;">(1992–2001)</span></li> <li><a href="/wiki/Far_Ultraviolet_Spectroscopic_Explorer" title="Far Ultraviolet Spectroscopic Explorer">FUSE</a> <span style="font-size:85%;">(1999–2007)</span></li> <li><a href="/wiki/Kvant-1" title="Kvant-1">Kvant-1</a> <span style="font-size:85%;">(1987–2001)</span></li> <li><a href="/wiki/GALEX" title="GALEX">GALEX</a> <span style="font-size:85%;">(2003–2013)</span></li> <li><a href="/wiki/Gamma_(satellite)" title="Gamma (satellite)">Gamma</a> <span style="font-size:85%;">(1990–1992)</span></li> <li><a href="/wiki/Ginga_(satellite)" title="Ginga (satellite)">Ginga (Astro-C)</a> <span style="font-size:85%;">(1987–1991)</span></li> <li><a href="/wiki/Granat" title="Granat">Granat</a> <span style="font-size:85%;">(1989–1998)</span></li> <li><a href="/wiki/Hakucho" title="Hakucho">Hakucho (CORSA-b)</a> <span style="font-size:85%;">(1979–1985)</span></li> <li><a href="/wiki/HALCA" title="HALCA">HALCA (MUSES-B)</a> <span style="font-size:85%;">(1997–2005)</span></li> <li><a href="/wiki/High_Energy_Astronomy_Observatory_1" title="High Energy Astronomy Observatory 1">HEAO-1</a> <span style="font-size:85%;">(1977–1979)</span></li> <li><a href="/wiki/Herschel_Space_Observatory" title="Herschel Space Observatory">Herschel</a> <span style="font-size:85%;">(2009–2013)</span></li> <li><a href="/wiki/Hinotori_(satellite)" title="Hinotori (satellite)">Hinotori (Astro-A)</a> <span style="font-size:85%;">(1981–1991)</span></li> <li><a href="/wiki/Hisaki_(satellite)" title="Hisaki (satellite)">Hisaki (SPRINT-A)</a> <span style="font-size:85%;">(2013–2023)</span></li> <li><a href="/wiki/Einstein_Observatory" title="Einstein Observatory">HEAO-2 (Einstein Obs.)</a> <span style="font-size:85%;">(1978–1982)</span></li> <li><a href="/wiki/High_Energy_Astronomy_Observatory_3" title="High Energy Astronomy Observatory 3">HEAO-3</a> <span style="font-size:85%;">(1979–1981)</span></li> <li><a href="/wiki/High_Energy_Transient_Explorer" class="mw-redirect" title="High Energy Transient Explorer">HETE-2</a> <span style="font-size:85%;">(2000–2008)</span></li> <li><a href="/wiki/Hipparcos" title="Hipparcos">Hipparcos</a> <span style="font-size:85%;">(1989–1993)</span></li> <li><a href="/wiki/International_Lunar_Observatory" title="International Lunar Observatory">ILO-X</a> <span style="font-size:85%;">(2024)</span></li> <li><a href="/wiki/IRAS" title="IRAS">IRAS</a> <span style="font-size:85%;">(1983)</span></li> <li><a href="/wiki/Space_Flyer_Unit#Experimentation_data" title="Space Flyer Unit">IRTS</a> <span style="font-size:85%;">(1995–1996)</span></li> <li><a href="/wiki/Infrared_Space_Observatory" title="Infrared Space Observatory">ISO</a> <span style="font-size:85%;">(1996–1998)</span></li> <li><a href="/wiki/International_Ultraviolet_Explorer" title="International Ultraviolet Explorer">IUE</a> <span style="font-size:85%;">(1978–1996)</span></li> <li><a href="/wiki/Indian_Remote_Sensing_Programme" title="Indian Remote Sensing Programme">IXAE</a> <span style="font-size:85%;">(1996–2004)</span></li> <li><a href="/wiki/Kepler_space_telescope" title="Kepler space telescope">Kepler</a> <span style="font-size:85%;">(2009–2018)</span></li> <li><a href="/wiki/Kristall" title="Kristall">Kristall</a> <span style="font-size:85%;">(1990–2001)</span></li> <li><a href="/wiki/LEGRI" title="LEGRI">LEGRI</a> <span style="font-size:85%;">(1997–2002)</span></li> <li><a href="/wiki/LISA_Pathfinder" title="LISA Pathfinder">LISA Pathfinder</a> <span style="font-size:85%;">(2015–2017)</span></li> <li><a href="/wiki/Miniature_X-ray_Solar_Spectrometer_CubeSat" title="Miniature X-ray Solar Spectrometer CubeSat">MinXSS</a> <span style="font-size:85%;">(2015–2017)</span></li> <li><a href="/wiki/MOST_(satellite)" class="mw-redirect" title="MOST (satellite)">MOST</a> <span style="font-size:85%;">(2003–2019)</span></li> <li><a href="/wiki/Midcourse_Space_Experiment" title="Midcourse Space Experiment">MSX</a> <span style="font-size:85%;">(1996–1997)</span></li> <li><a href="/wiki/Mikhailo_Lomonosov_(satellite)" title="Mikhailo Lomonosov (satellite)">Mikhailo Lomonosov</a> <span style="font-size:85%;">(2016–2019?)</span></li> <li><a href="/wiki/Orbiting_Astronomical_Observatory_2" title="Orbiting Astronomical Observatory 2">OAO-2</a> <span style="font-size:85%;">(1968–1973)</span></li> <li><a href="/wiki/Orbiting_Astronomical_Observatory#OAO-3_(Copernicus)" title="Orbiting Astronomical Observatory">OAO-3 (Copernicus)</a> <span style="font-size:85%;">(1972–1981)</span></li> <li><a href="/wiki/Orbiting_Solar_Observatory" title="Orbiting Solar Observatory">Orbiting Solar Observatory</a> <ul><li><a href="/wiki/OSO_1" class="mw-redirect" title="OSO 1">OSO 1</a></li> <li><a href="/wiki/Orbiting_Solar_Observatory" title="Orbiting Solar Observatory">OSO B</a></li> <li><a href="/wiki/OSO_3" title="OSO 3">OSO 3</a></li> <li><a href="/wiki/OSO_4" class="mw-redirect" title="OSO 4">OSO 4</a></li> <li><a href="/wiki/OSO_5" class="mw-redirect" title="OSO 5">OSO 5</a></li> <li><a href="/wiki/OSO_6" class="mw-redirect" title="OSO 6">OSO 6</a></li> <li><a href="/wiki/OSO_7" title="OSO 7">OSO 7</a></li> <li><a href="/wiki/OSO_8" class="mw-redirect" title="OSO 8">OSO 8</a></li></ul></li> <li><a href="/wiki/Orion_(space_telescope)" title="Orion (space telescope)">Orion 1</a> <span style="font-size:85%;">(1971)</span></li> <li><a href="/wiki/Orion_(space_telescope)" title="Orion (space telescope)">Orion 2</a> <span style="font-size:85%;">(1973)</span></li> <li><a href="/wiki/PAMELA_detector" title="PAMELA detector">PAMELA</a> <span style="font-size:85%;">(2006–2016)</span></li> <li><a href="/wiki/PicSat" title="PicSat">PicSat</a> <span style="font-size:85%;">(2018)</span></li> <li><a href="/wiki/Planck_(spacecraft)" title="Planck (spacecraft)">Planck</a> <span style="font-size:85%;">(2009–2013)</span></li> <li><a href="/wiki/RELIKT-1" title="RELIKT-1">RELIKT-1</a> <span style="font-size:85%;">(1983–1984)</span></li> <li><a href="/wiki/Reuven_Ramaty_High_Energy_Solar_Spectroscopic_Imager" title="Reuven Ramaty High Energy Solar Spectroscopic Imager">R/HESSI</a> <span style="font-size:85%;">(2002–2018)</span></li> <li><a href="/wiki/ROSAT" title="ROSAT">ROSAT</a> <span style="font-size:85%;">(1990–1999)</span></li> <li><a href="/wiki/Rossi_X-ray_Timing_Explorer" title="Rossi X-ray Timing Explorer">RXTE</a> <span style="font-size:85%;">(1995–2012)</span></li> <li><a href="/wiki/Solar_Anomalous_and_Magnetospheric_Particle_Explorer" title="Solar Anomalous and Magnetospheric Particle Explorer">SAMPEX</a> <span style="font-size:85%;">(1992–2004)</span></li> <li><a href="/wiki/Small_Astronomy_Satellite_2" title="Small Astronomy Satellite 2">SAS-B</a> <span style="font-size:85%;">(1972–1973)</span></li> <li><a href="/wiki/Small_Astronomy_Satellite_3" title="Small Astronomy Satellite 3">SAS-C</a> <span style="font-size:85%;">(1975–1979)</span></li> <li><a href="/wiki/Solwind" title="Solwind">Solwind</a> <span style="font-size:85%;">(1979–1985)</span></li> <li><a href="/wiki/Spektr-R" title="Spektr-R">Spektr-R</a> <span style="font-size:85%;">(2011–2019)</span></li> <li><a href="/wiki/Spitzer_Space_Telescope" title="Spitzer Space Telescope">Spitzer</a> <span style="font-size:85%;">(2003–2020)</span></li> <li><a href="/wiki/Suzaku_(satellite)" title="Suzaku (satellite)">Suzaku (Astro-EII)</a> <span style="font-size:85%;">(2005–2015)</span></li> <li><a href="/wiki/Solar_Radiation_and_Thermospheric_Satellite" title="Solar Radiation and Thermospheric Satellite">Taiyo (SRATS)</a> <span style="font-size:85%;">(1975–1980)</span></li> <li><a href="/wiki/Tenma" title="Tenma">Tenma (Astro-B)</a> <span style="font-size:85%;">(1983–1985)</span></li> <li><a href="/wiki/Uhuru_(satellite)" title="Uhuru (satellite)">Uhuru</a> <span style="font-size:85%;">(1970–1973)</span></li> <li><a href="/wiki/Vanguard_3" title="Vanguard 3">Vanguard 3</a> <span style="font-size:85%;">(1959)</span></li> <li><a href="/wiki/Wilkinson_Microwave_Anisotropy_Probe" title="Wilkinson Microwave Anisotropy Probe">WMAP</a> <span style="font-size:85%;">(2001–2010)</span></li> <li><a href="/wiki/Wide-field_Infrared_Survey_Explorer" title="Wide-field Infrared Survey Explorer">WISE</a> <span style="font-size:85%;">(2009–2024)</span></li> <li><a href="/wiki/Yohkoh" title="Yohkoh">Yokoh (Solar-A)</a> <span style="font-size:85%;">(1991–2001)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Hibernating <br /><span style="font-size:85%;">(Mission completed)</span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Submillimeter_Wave_Astronomy_Satellite" title="Submillimeter Wave Astronomy Satellite">SWAS</a> <span style="font-size:85%;">(1998–2005)</span></li> <li><a href="/wiki/TRACE" title="TRACE">TRACE</a> <span style="font-size:85%;">(1998–2010)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Lost/Failed</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Orbiting_Astronomical_Observatory#OAO-1" title="Orbiting Astronomical Observatory">OAO-1</a> <span style="font-size:85%;">(1966)</span></li> <li><a href="/wiki/Orbiting_Astronomical_Observatory#OAO-B" title="Orbiting Astronomical Observatory">OAO-B</a> <span style="font-size:85%;">(1970)</span></li> <li><a href="/wiki/Cosmic_Radiation_Satellite" title="Cosmic Radiation Satellite">CORSA</a> <span style="font-size:85%;">(1976)</span></li> <li><a href="/wiki/CXBN" title="CXBN">CXBN</a> <span style="font-size:85%;">(2012–2013)</span></li> <li><a href="/wiki/Orbiting_Solar_Observatory" title="Orbiting Solar Observatory">OSO C</a> <span style="font-size:85%;">(1965)</span></li> <li><a href="/wiki/ABRIXAS" title="ABRIXAS">ABRIXAS</a> <span style="font-size:85%;">(1999)</span></li> <li><a href="/wiki/High_Energy_Transient_Explorer" class="mw-redirect" title="High Energy Transient Explorer">HETE-1</a> <span style="font-size:85%;">(1996)</span></li> <li><a href="/wiki/Wide_Field_Infrared_Explorer" title="Wide Field Infrared Explorer">WIRE</a> <span style="font-size:85%;">(1999)</span></li> <li><a href="/wiki/Suzaku_(satellite)#ASTRO-E" title="Suzaku (satellite)">Astro-E</a> <span style="font-size:85%;">(2000)</span></li> <li><a href="/wiki/TSUBAME_(satellite)" title="TSUBAME (satellite)">Tsubame</a> <span style="font-size:85%;">(2014–2015)</span></li> <li><a href="/wiki/Hitomi_(satellite)" title="Hitomi (satellite)">Hitomi (Astro-H)</a> <span style="font-size:85%;">(2016)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Cancelled</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aelita_(spacecraft)" title="Aelita (spacecraft)">Aelita</a></li> <li><a href="/wiki/AOSO" class="mw-redirect" title="AOSO">AOSO</a></li> <li><a href="/wiki/Astro-G" title="Astro-G">Astro-G</a></li> <li><a href="/wiki/Constellation-X_Observatory" title="Constellation-X Observatory">Constellation-X</a></li> <li><i><a href="/wiki/Darwin_(spacecraft)" title="Darwin (spacecraft)">Darwin</a></i></li> <li><a href="/wiki/Dark_Energy_Space_Telescope" class="mw-redirect" title="Dark Energy Space Telescope">Destiny</a></li> <li><a class="mw-selflink selflink">EChO</a></li> <li><i><a href="/wiki/Eddington_(spacecraft)" title="Eddington (spacecraft)">Eddington</a></i></li> <li><a href="/wiki/Full-sky_Astrometric_Mapping_Explorer" title="Full-sky Astrometric Mapping Explorer">FAME</a></li> <li><a href="/wiki/Fast_Infrared_Exoplanet_Spectroscopy_Survey_Explorer" title="Fast Infrared Exoplanet Spectroscopy Survey Explorer">FINESSE</a></li> <li><a href="/wiki/Gravity_and_Extreme_Magnetism" class="mw-redirect" title="Gravity and Extreme Magnetism">GEMS</a></li> <li><a href="/wiki/Hubble_Origins_Probe" title="Hubble Origins Probe">HOP</a></li> <li><a href="/wiki/International_X-ray_Observatory" title="International X-ray Observatory">IXO</a></li> <li><a href="/wiki/Joint_Dark_Energy_Mission" title="Joint Dark Energy Mission">JDEM</a></li> <li><a href="/wiki/LOFT" title="LOFT">LOFT</a></li> <li><a href="/wiki/OSO_J" class="mw-redirect" title="OSO J">OSO J</a></li> <li><a href="/wiki/OSO_K" class="mw-redirect" title="OSO K">OSO K</a></li> <li><a href="/wiki/Sentinel_Space_Telescope" title="Sentinel Space Telescope">Sentinel</a></li> <li><a href="/wiki/Space_Interferometry_Mission" title="Space Interferometry Mission">SIM & SIMlite</a></li> <li><a href="/wiki/Supernova/Acceleration_Probe" class="mw-redirect" title="Supernova/Acceleration Probe">SNAP</a></li> <li><a href="/wiki/SPICA_(spacecraft)" title="SPICA (spacecraft)">SPICA</a></li> <li><a href="/wiki/Sky_Polarization_Observatory" title="Sky Polarization Observatory">SPOrt</a></li> <li><a href="/wiki/TAUVEX" title="TAUVEX">TAUVEX</a></li> <li><a href="/wiki/Terrestrial_Planet_Finder" title="Terrestrial Planet Finder">TPF</a></li> <li><a href="/wiki/XEUS" title="XEUS">XEUS</a></li> <li><a href="/w/index.php?title=XIPE&action=edit&redlink=1" class="new" title="XIPE (page does not exist)">XIPE</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Great_Observatories_program" title="Great Observatories program">Great Observatories program</a></li> <li><a href="/wiki/List_of_space_telescopes" title="List of space telescopes">List of space telescopes</a></li> <li><a href="/wiki/List_of_proposed_space_telescopes" title="List of proposed space telescopes">List of proposed space telescopes</a></li> <li><a href="/wiki/X-ray_telescope" title="X-ray telescope">X-ray telescope</a></li> <li><a href="/wiki/List_of_heliophysics_missions" title="List of heliophysics missions">List of heliophysics missions</a></li> <li><a href="/wiki/List_of_planetariums" title="List of planetariums">List of planetariums</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Space_telescopes" title="Category:Space telescopes">Category:Space telescopes</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Exoplanet_search_projects" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Exoplanet_search_projects" title="Template:Exoplanet search projects"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Exoplanet_search_projects" title="Template talk:Exoplanet search projects"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Exoplanet_search_projects" title="Special:EditPage/Template:Exoplanet search projects"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Exoplanet_search_projects" style="font-size:114%;margin:0 4em"><a href="/wiki/List_of_exoplanet_search_projects" title="List of exoplanet search projects">Exoplanet search projects</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><a href="/wiki/Exoplanetology" class="mw-redirect" title="Exoplanetology">Exoplanetology</a></li> <li><a href="/wiki/Exoplanet" title="Exoplanet">Exoplanet</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Ground-based</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Anglo-Australian_Planet_Search" title="Anglo-Australian Planet Search">AAPS</a></li> <li><a href="/wiki/Automated_Planet_Finder" title="Automated Planet Finder">APF</a></li> <li><a href="/wiki/Swiss_1.2-metre_Leonhard_Euler_Telescope" title="Swiss 1.2-metre Leonhard Euler Telescope">CORALIE</a></li> <li><a href="/wiki/East-Asian_Planet_Search_Network" title="East-Asian Planet Search Network">EAPSNet</a></li> <li><a href="/wiki/ELODIE_spectrograph" title="ELODIE spectrograph">ELODIE</a></li> <li><a href="/wiki/Extremely_Large_Telescope#Instrumentation" title="Extremely Large Telescope">EPICS</a></li> <li><a href="/wiki/ESPRESSO" title="ESPRESSO">ESPRESSO</a></li> <li><a href="/wiki/Fiber-optic_Improved_Next-generation_Doppler_Search_for_Exo-Earths" title="Fiber-optic Improved Next-generation Doppler Search for Exo-Earths">FINDS Exo-Earths</a></li> <li><a href="/wiki/Geneva_Extrasolar_Planet_Search" title="Geneva Extrasolar Planet Search">Geneva</a> <ul><li><a href="/wiki/High_Accuracy_Radial_Velocity_Planet_Searcher" title="High Accuracy Radial Velocity Planet Searcher">HARPS</a></li> <li><a href="/wiki/HARPS-N" title="HARPS-N">HARPS-N</a></li></ul></li> <li><a href="/wiki/Gemini_Planet_Imager" title="Gemini Planet Imager">GPI</a></li> <li><a href="/wiki/HATNet_Project" title="HATNet Project">HATNet</a></li> <li><a href="/wiki/Hunt_for_Exomoons_with_Kepler" title="Hunt for Exomoons with Kepler">HEK</a></li> <li><a href="/wiki/HiCIAO" class="mw-redirect" title="HiCIAO">HiCIAO</a></li> <li><a href="/wiki/HIRES" class="mw-redirect" title="HIRES">HIRES</a></li> <li><a href="/wiki/Kilodegree_Extremely_Little_Telescope" title="Kilodegree Extremely Little Telescope">KELT</a></li> <li><a href="/wiki/Lick%E2%80%93Carnegie_Exoplanet_Survey" title="Lick–Carnegie Exoplanet Survey">LCES</a></li> <li><a href="/wiki/Magellan_Planet_Search_Program" title="Magellan Planet Search Program">Magellan</a></li> <li><a href="/wiki/MARVELS" class="mw-redirect" title="MARVELS">MARVELS</a></li> <li><a href="/wiki/MASCARA" title="MASCARA">MASCARA</a></li> <li><a href="/wiki/MEarth_Project" title="MEarth Project">MEarth</a></li> <li><a href="/wiki/MicroFUN" title="MicroFUN">MicroFUN</a></li> <li><a href="/wiki/Miniature_Exoplanet_Radial_Velocity_Array" title="Miniature Exoplanet Radial Velocity Array">MINERVA</a> <ul><li><a href="/wiki/MINERVA-Australis" title="MINERVA-Australis">Australis</a></li></ul></li> <li><a href="/wiki/Microlensing_Observations_in_Astrophysics" title="Microlensing Observations in Astrophysics">MOA</a></li> <li><a href="/wiki/N2K_Consortium" title="N2K Consortium">N2K</a></li> <li><a href="/wiki/Next-Generation_Transit_Survey" title="Next-Generation Transit Survey">NGTS</a></li> <li><a href="/wiki/New_Mexico_Exoplanet_Spectroscopic_Survey_Instrument" title="New Mexico Exoplanet Spectroscopic Survey Instrument">NESSI</a></li> <li><a href="/wiki/Optical_Gravitational_Lensing_Experiment" title="Optical Gravitational Lensing Experiment">OGLE</a></li> <li><a href="/wiki/Okayama_Planet_Search_Program" title="Okayama Planet Search Program">OPSP</a></li> <li><a href="/wiki/PlanetPol" title="PlanetPol">PlanetPol</a></li> <li><a href="/wiki/Project_1640" title="Project 1640">Project 1640</a></li> <li><a href="/wiki/PRL_Advanced_Radial-velocity_All-sky_Search" title="PRL Advanced Radial-velocity All-sky Search">PARAS</a></li> <li><a href="/wiki/Strategic_Explorations_of_Exoplanets_and_Disks_with_Subaru" title="Strategic Explorations of Exoplanets and Disks with Subaru">SEEDS</a></li> <li><a href="/wiki/Search_for_extraterrestrial_intelligence" title="Search for extraterrestrial intelligence">SETI</a></li> <li><a href="/wiki/SOPHIE_%C3%A9chelle_spectrograph" title="SOPHIE échelle spectrograph">SOPHIE</a></li> <li><a href="/wiki/SPECULOOS" title="SPECULOOS">SPECULOOS</a></li> <li><a href="/wiki/Spectro-Polarimetric_High-Contrast_Exoplanet_Research" title="Spectro-Polarimetric High-Contrast Exoplanet Research">SPHERE</a></li> <li><a href="/wiki/Wide_Angle_Search_for_Planets" title="Wide Angle Search for Planets">SuperWASP</a></li> <li><a href="/wiki/Systemic_(amateur_extrasolar_planet_search_project)" title="Systemic (amateur extrasolar planet search project)">Systemic</a></li> <li><a href="/wiki/Trans-Atlantic_Exoplanet_Survey" title="Trans-Atlantic Exoplanet Survey">TrES</a></li> <li><a href="/wiki/XO_Telescope" class="mw-redirect" title="XO Telescope">XO Telescope</a></li> <li><a href="/wiki/ZIMPOL/CHEOPS" title="ZIMPOL/CHEOPS">ZIMPOL/CHEOPS</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="3" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/File:HST_SWEEPS_Detail_2006.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5b/HST_SWEEPS_Detail_2006.jpg/80px-HST_SWEEPS_Detail_2006.jpg" decoding="async" width="80" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5b/HST_SWEEPS_Detail_2006.jpg/120px-HST_SWEEPS_Detail_2006.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5b/HST_SWEEPS_Detail_2006.jpg/160px-HST_SWEEPS_Detail_2006.jpg 2x" data-file-width="800" data-file-height="800" /></a></span><br /><span typeof="mw:File"><a href="/wiki/File:Keplerspacecraft-FocalPlane-cutout.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Keplerspacecraft-FocalPlane-cutout.svg/80px-Keplerspacecraft-FocalPlane-cutout.svg.png" decoding="async" width="80" height="46" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Keplerspacecraft-FocalPlane-cutout.svg/120px-Keplerspacecraft-FocalPlane-cutout.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Keplerspacecraft-FocalPlane-cutout.svg/160px-Keplerspacecraft-FocalPlane-cutout.svg.png 2x" data-file-width="716" data-file-height="416" /></a></span><br /><span typeof="mw:File"><a href="/wiki/File:LombergA1024.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/be/LombergA1024.jpg/80px-LombergA1024.jpg" decoding="async" width="80" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/be/LombergA1024.jpg/120px-LombergA1024.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/be/LombergA1024.jpg/160px-LombergA1024.jpg 2x" data-file-width="1596" data-file-height="1206" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Space missions</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Past</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MOST_(satellite)" class="mw-redirect" title="MOST (satellite)">MOST</a> <span style="font-size:85%;">(2003–2019)</span></li> <li><a href="/wiki/Sagittarius_Window_Eclipsing_Extrasolar_Planet_Search" title="Sagittarius Window Eclipsing Extrasolar Planet Search">SWEEPS</a> <span style="font-size:85%;">using <a href="/wiki/Hubble_Space_Telescope" title="Hubble Space Telescope">HST</a></span> <span style="font-size:85%;">(2006)</span></li> <li><a href="/wiki/CoRoT" title="CoRoT">CoRoT</a> <span style="font-size:85%;">(2006–2013)</span></li> <li><a href="/wiki/EPOXI" title="EPOXI">EPOXI</a> <span style="font-size:85%;">using <i><a href="/wiki/Deep_Impact_(spacecraft)" title="Deep Impact (spacecraft)">Deep Impact</a></i></span> <span style="font-size:85%;">(2008–2013)</span></li> <li><a href="/wiki/Kepler_space_telescope" title="Kepler space telescope">Kepler</a> <span style="font-size:85%;">(2009–2018)</span> <ul><li><span style="font-size:85%;"><a href="/wiki/List_of_exoplanets_discovered_by_the_Kepler_space_telescope" title="List of exoplanets discovered by the Kepler space telescope">detected exoplanets</a></span></li></ul></li> <li><a href="/wiki/ASTERIA_(spacecraft)" title="ASTERIA (spacecraft)">ASTERIA</a> <span style="font-size:85%;">(2017–2020)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Current</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Gaia_(spacecraft)" title="Gaia (spacecraft)">Gaia</a></i> <span style="font-size:85%;">(2013–present)</span></li> <li><a href="/wiki/Transiting_Exoplanet_Survey_Satellite" title="Transiting Exoplanet Survey Satellite">TESS</a> <span style="font-size:85%;">(2018–present)</span></li> <li><a href="/wiki/CHEOPS" title="CHEOPS">CHEOPS</a> <span style="font-size:85%;">(2019–present)</span></li> <li><i><a href="/wiki/Hayabusa2" title="Hayabusa2">Hayabusa2</a></i> <span style="font-size:85%;">(2021–present)</span></li> <li><a href="/wiki/James_Webb_Space_Telescope" title="James Webb Space Telescope">James Webb Space Telescope</a> <span style="font-size:85%;">(2021–present)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Planned</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/PLATO_(spacecraft)" title="PLATO (spacecraft)">PLATO</a></i> <span style="font-size:85%;">(2026)</span></li> <li><a href="/wiki/ARIEL" title="ARIEL">ARIEL</a> <span style="font-size:85%;">(2029)</span></li> <li><a href="/wiki/Nancy_Grace_Roman_Space_Telescope" title="Nancy Grace Roman Space Telescope">Nancy Grace Roman Space Telescope</a> <span style="font-size:85%;">(mid-2020s)</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Proposed</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Exoplanetary_Circumstellar_Environments_and_Disk_Explorer" title="Exoplanetary Circumstellar Environments and Disk Explorer">EXCEDE</a></li> <li><a href="/wiki/Habitable_Exoplanet_Imaging_Mission" class="mw-redirect" title="Habitable Exoplanet Imaging Mission">HabEx</a></li> <li><a href="/wiki/Large_Interferometer_For_Exoplanets" title="Large Interferometer For Exoplanets">LIFE</a></li> <li><a href="/wiki/Large_Ultraviolet_Optical_Infrared_Surveyor" title="Large Ultraviolet Optical Infrared Surveyor">LUVOIR</a></li> <li><a href="/wiki/Nautilus_Deep_Space_Observatory" title="Nautilus Deep Space Observatory">Nautilus Deep Space Observatory</a></li> <li><a href="/wiki/New_Worlds_Mission" title="New Worlds Mission">New Worlds Mission</a></li> <li><a href="/wiki/Origins_Space_Telescope" title="Origins Space Telescope">OST</a></li> <li><a href="/wiki/PEGASE" title="PEGASE">PEGASE</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Cancelled</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Darwin_(spacecraft)" title="Darwin (spacecraft)">Darwin</a></i></li> <li><a class="mw-selflink selflink">EChO</a></li> <li><i><a href="/wiki/Eddington_(spacecraft)" title="Eddington (spacecraft)">Eddington</a></i></li> <li><a href="/wiki/Space_Interferometry_Mission" title="Space Interferometry Mission">Space Interferometry Mission</a></li> <li><a href="/wiki/Terrestrial_Planet_Finder" title="Terrestrial Planet Finder">Terrestrial Planet Finder</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Methods_of_detecting_exoplanets" title="Methods of detecting exoplanets">Detection methods</a></li> <li><a href="/wiki/Discoveries_of_exoplanets" title="Discoveries of exoplanets">Discoveries of exoplanets</a></li> <li><a href="/wiki/Habitable_zone_for_complex_life" title="Habitable zone for complex life">Habitable zone for complex life</a></li> <li><a href="/wiki/Lists_of_exoplanets" class="mw-redirect" title="Lists of exoplanets">Lists of exoplanets</a> <ul><li><a href="/wiki/List_of_nearest_exoplanets" title="List of nearest exoplanets">nearest</a></li></ul></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <b><a href="/wiki/Category:Exoplanet_search_projects" title="Category:Exoplanet search projects">Category</a></b></li> <li><span class="noviewer" typeof="mw:File"><span title="Commons page"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/12px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/24px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span> <a href="https://commons.wikimedia.org/wiki/Category:Exoplanet_search_projects" class="extiw" title="commons:Category:Exoplanet search projects"><b>Commons</b></a></li></ul> </div></td></tr></tbody></table></div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1012311289">.mw-parser-output .asbox{position:relative;overflow:hidden}.mw-parser-output .asbox table{background:transparent}.mw-parser-output .asbox p{margin:0}.mw-parser-output .asbox p+p{margin-top:0.25em}.mw-parser-output .asbox-body{font-style:italic}.mw-parser-output .asbox-note{font-size:smaller}.mw-parser-output .asbox .navbar{position:absolute;top:-0.75em;right:1em;display:none}</style><div role="note" class="metadata plainlinks asbox stub"><table role="presentation"><tbody><tr class="noresize"><td><p class="asbox-body">This article related to the <a href="/wiki/European_Space_Agency" title="European Space Agency">European Space Agency</a> is a <a href="/wiki/Wikipedia:Stub" title="Wikipedia:Stub">stub</a>. You can help Wikipedia by <a class="external text" href="https://en.wikipedia.org/w/index.php?title=EChO&action=edit">expanding it</a>.</p></td></tr></tbody></table><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:ESA-stub" title="Template:ESA-stub"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:ESA-stub" title="Template talk:ESA-stub"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:ESA-stub" title="Special:EditPage/Template:ESA-stub"><abbr title="Edit this template">e</abbr></a></li></ul></div></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1012311289"><div role="note" class="metadata plainlinks asbox stub"><table role="presentation"><tbody><tr class="noresize"><td><span typeof="mw:File"><span><img alt="Stub icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Europe-Satellite.svg/40px-Europe-Satellite.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Europe-Satellite.svg/60px-Europe-Satellite.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Europe-Satellite.svg/80px-Europe-Satellite.svg.png 2x" data-file-width="378" data-file-height="378" /></span></span></td><td><p class="asbox-body">This article about one or more spacecraft of a European multinational organisation is a <a href="/wiki/Wikipedia:Stub" title="Wikipedia:Stub">stub</a>. You can help Wikipedia by <a class="external text" href="https://en.wikipedia.org/w/index.php?title=EChO&action=edit">expanding it</a>.</p></td></tr></tbody></table><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Europe-spacecraft-stub" title="Template:Europe-spacecraft-stub"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Europe-spacecraft-stub" title="Template talk:Europe-spacecraft-stub"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Europe-spacecraft-stub" title="Special:EditPage/Template:Europe-spacecraft-stub"><abbr title="Edit this template">e</abbr></a></li></ul></div></div> <!-- NewPP limit report Parsed by mw‐web.codfw.main‐f69cdc8f6‐mjpz6 Cached time: 20241122230459 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1, show‐toc] CPU time usage: 0.751 seconds Real time usage: 0.968 seconds Preprocessor visited node count: 4245/1000000 Post‐expand include size: 241037/2097152 bytes Template argument size: 7687/2097152 bytes Highest expansion depth: 14/100 Expensive parser function count: 2/500 Unstrip recursion depth: 1/20 Unstrip post‐expand size: 79863/5000000 bytes Lua time usage: 0.392/10.000 seconds Lua memory usage: 7860964/52428800 bytes Number of Wikibase entities loaded: 1/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 701.853 1 -total 39.07% 274.195 6 Template:Infobox 32.62% 228.970 8 Template:Navbox 26.09% 183.120 1 Template:Infobox_spaceflight 25.60% 179.695 1 Template:Reflist 21.66% 152.039 1 Template:European_Space_Agency 16.64% 116.761 7 Template:Cite_web 10.12% 71.023 1 Template:Short_description 5.64% 39.566 4 Template:Convert 5.54% 38.884 2 Template:Cite_journal --> <!-- Saved in parser cache with key enwiki:pcache:idhash:31272845-0!canonical and timestamp 20241122230459 and revision id 1223270169. Rendering was triggered because: page-view --> </div><!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=EChO&oldid=1223270169">https://en.wikipedia.org/w/index.php?title=EChO&oldid=1223270169</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:European_Space_Agency_space_probes" title="Category:European Space Agency space probes">European Space Agency space probes</a></li><li><a href="/wiki/Category:Space_telescopes" title="Category:Space telescopes">Space telescopes</a></li><li><a href="/wiki/Category:Exoplanet_search_projects" title="Category:Exoplanet search projects">Exoplanet search projects</a></li><li><a href="/wiki/Category:Cosmic_Vision" title="Category:Cosmic Vision">Cosmic Vision</a></li><li><a href="/wiki/Category:European_space_programme_stubs" title="Category:European space programme stubs">European space programme stubs</a></li><li><a href="/wiki/Category:European_spacecraft_stubs" title="Category:European spacecraft stubs">European spacecraft stubs</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:CS1_Japanese-language_sources_(ja)" title="Category:CS1 Japanese-language sources (ja)">CS1 Japanese-language sources (ja)</a></li><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_matches_Wikidata" title="Category:Short description matches Wikidata">Short description matches Wikidata</a></li><li><a href="/wiki/Category:Use_British_English_from_January_2014" title="Category:Use British English from January 2014">Use British English from January 2014</a></li><li><a href="/wiki/Category:All_stub_articles" title="Category:All stub articles">All stub articles</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 10 May 2024, at 23:59<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. By using this site, you agree to the <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use" class="extiw" title="foundation:Special:MyLanguage/Policy:Terms of Use">Terms of Use</a> and <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy" class="extiw" title="foundation:Special:MyLanguage/Policy:Privacy policy">Privacy Policy</a>. Wikipedia® is a registered trademark of the <a rel="nofollow" class="external text" href="https://wikimediafoundation.org/">Wikimedia Foundation, Inc.</a>, a non-profit organization.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:About">About Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers</a></li> <li id="footer-places-contact"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us">Contact Wikipedia</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/en.wikipedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//en.m.wikipedia.org/w/index.php?title=EChO&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-57488d5c7d-vf4l6","wgBackendResponseTime":151,"wgPageParseReport":{"limitreport":{"cputime":"0.751","walltime":"0.968","ppvisitednodes":{"value":4245,"limit":1000000},"postexpandincludesize":{"value":241037,"limit":2097152},"templateargumentsize":{"value":7687,"limit":2097152},"expansiondepth":{"value":14,"limit":100},"expensivefunctioncount":{"value":2,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":79863,"limit":5000000},"entityaccesscount":{"value":1,"limit":400},"timingprofile":["100.00% 701.853 1 -total"," 39.07% 274.195 6 Template:Infobox"," 32.62% 228.970 8 Template:Navbox"," 26.09% 183.120 1 Template:Infobox_spaceflight"," 25.60% 179.695 1 Template:Reflist"," 21.66% 152.039 1 Template:European_Space_Agency"," 16.64% 116.761 7 Template:Cite_web"," 10.12% 71.023 1 Template:Short_description"," 5.64% 39.566 4 Template:Convert"," 5.54% 38.884 2 Template:Cite_journal"]},"scribunto":{"limitreport-timeusage":{"value":"0.392","limit":"10.000"},"limitreport-memusage":{"value":7860964,"limit":52428800}},"cachereport":{"origin":"mw-web.codfw.main-f69cdc8f6-mjpz6","timestamp":"20241122230459","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"EChO","url":"https:\/\/en.wikipedia.org\/wiki\/EChO","sameAs":"http:\/\/www.wikidata.org\/entity\/Q3062047","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q3062047","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2011-03-23T13:29:49Z","dateModified":"2024-05-10T23:59:36Z","headline":"proposed space telescope"}</script> </body> </html>