CINXE.COM

<!DOCTYPE html>     <html lang="en" dir="ltr"> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("https://eventhorizontelescope.org/blog/eht-observing-campaign-2020-canceled-due-covid-19-outbreak","20210511063217","https://web.archive.org/","web","/_static/", "1620714737"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <meta charset="utf-8"/> <base href="/web/20210511063217/https://eventhorizontelescope.org/blog/eht-observing-campaign-2020-canceled-due-covid-19-outbreak"/> <link rel="shortcut icon" href="https://web.archive.org/web/20210511063217im_/https://eventhorizontelescope.org/files/log_2048.png?m=1497636799"/> <link rel="dns-prefetch" href="//web.archive.org/web/20210511063217/https://static.projects.iq.harvard.edu/"/> <meta name="generator" content="OpenScholar for Drupal 7 (http://theopenscholar.org)"/> <link rel="canonical" href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/blog/eht-observing-campaign-2020-canceled-due-covid-19-outbreak"/> <link rel="shortlink" href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/node/1492428"/> <meta property="og:type" content="blog"/> <meta property="og:title" content="EHT Observing Campaign 2020 Canceled Due to the COVID-19 Outbreak"/> <meta name="twitter:card" content="summary"/> <meta name="twitter:title" content="EHT Observing Campaign 2020 Canceled Due to the COVID-19 Outbreak"/> <meta name="twitter:image" content="https://web.archive.org/web/20210511063217im_/https://eventhorizontelescope.org/files/eht/files/eht_new_logo_04_cut2.png?m=1506538948"/> <title>EHT Observing Campaign 2020 Canceled Due to the COVID-19 Outbreak | Event Horizon Telescope</title> <meta http-equiv="x-ua-compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"/> <link type="text/css" rel="stylesheet" href="https://web.archive.org/web/20210511063217cs_/https://eventhorizontelescope.org/files/css/css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css?m=1619183700" media="all"/> <link type="text/css" rel="stylesheet" href="https://web.archive.org/web/20210511063217cs_/https://eventhorizontelescope.org/files/css/css_1kR8T1_c-l5pBT6ZwbDT7BFda-4fyqW9Jjum29_2IY8.css?m=1619183706" media="all"/> <link type="text/css" rel="stylesheet" href="https://web.archive.org/web/20210511063217cs_/https://eventhorizontelescope.org/files/css/css_YnlUIvHP13qgpYEqubzE8JyDwlSxUnVibfnVkSoSDb0.css?m=1619183697" media="all"/> <link type="text/css" rel="stylesheet" href="https://web.archive.org/web/20210511063217cs_/https://eventhorizontelescope.org/files/css/css_VgurC2fnvRDC8mGa4lpRG-Mr1lmpYG0j2-0A02t54yI.css?m=1617984797" media="all"/> <link type="text/css" rel="stylesheet" href="https://web.archive.org/web/20210511063217cs_/https://eventhorizontelescope.org/files/css/css_33z4KGY5BknhghATEcEwnnJeljoxSXNC2qm1_tyZjU0.css?m=1618944857" media="screen"/> <link type="text/css" rel="stylesheet" href="https://web.archive.org/web/20210511063217cs_/https://eventhorizontelescope.org/files/css/css_dW-aNNrctRhQNc-KECjtQd0PxuW-h19IEum-TX2MeEk.css?m=1619183701" media="print"/> <link type="text/css" rel="stylesheet" href="https://web.archive.org/web/20210511063217cs_/https://eventhorizontelescope.org/files/css/css_SH2Lx3Qprh0GZo_9xRp85U9NsWfkSXn_Bi-rJoMY1sw.css?m=1619183697" media="screen"/> <link type="text/css" rel="stylesheet" href="https://web.archive.org/web/20210511063217cs_/https://eventhorizontelescope.org/files/css/css_uaIDKcYMUK5osSQXuirpr3ZleXtnnpBN-eiECm7N0M0.css?m=1619183749" media="all"/> <link type="text/css" rel="stylesheet" href="https://web.archive.org/web/20210511063217cs_/https://eventhorizontelescope.org/profiles/openscholar/themes/hwpi_classic/flavors/teal_accents/teal_accents.css?qsoy9z" media="all"/> <link type="text/css" rel="stylesheet" href="https://web.archive.org/web/20210511063217cs_/https://eventhorizontelescope.org/profiles/openscholar/themes/hwpi_classic/flavors/teal_accents/responsive.teal_accents.css?qsoy9z" media="all"/>  </head> <body class="html not-front not-logged-in no-sidebars page-node page-node- page-node-1492428 node-type-blog og-context og-context-node og-context-node-931786 navbar-on" ng-app="openscholar"> <div id="skip-link"> <a href="#main-content" class="element-invisible element-focusable" tabindex="1">Skip to main content</a> </div> <div id="page_wrap" class="page_wrap">  <div class="responive-menu-container clearfix"> <ul class="mobile-buttons num-links-3"><li class="link-count-mobi-main first"><a href="#" data-target="#block-os-primary-menu"><span aria-hidden="true" class="icon-menu"></span><span class="move">Main Menu</span></a></li><li class="link-count-mobi-util"><a href="#" data-target="#block-os-quick-links, #block-os-secondary-menu, #header .os-custom-menu"><span aria-hidden="true" class="icon-plus"></span><span class="move">Utility Menu</span></a></li><li class="link-count-mobi-search last"><a href="#" data-target="#block-os-search-db-site-search, #block-boxes-solr-search-box"><span aria-hidden="true" class="icon-search3"></span><span class="move">Search</span></a></li></ul></div>  <div id="branding_header"> <div class="branding-container clearfix"> <div class="branding-left"><a href="https://web.archive.org/web/20210511063217/http://www.harvard.edu/"><img src="https://web.archive.org/web/20210511063217im_/https://eventhorizontelescope.org/profiles/openscholar/themes/hwpi_basetheme/images/harvard-logo.png" width="235" height="32" alt="University Logo"/></a></div><div class="branding-right"><a href="https://web.archive.org/web/20210511063217/http://www.harvard.edu/">HARVARD.EDU</a></div> </div> </div> <div id="page" class="container page header-main content-none footer-left footer footer-right"> <div id="page-wrapper">  <header id="header" class="clearfix" role="banner"> <div id="header-container"> <div id="header-panels" class="at-panel gpanel panel-display three-col clearfix"> <div class="region region-header-second"><div class="region-inner clearfix"><div id="block-boxes-site-logo" class="block block-boxes block-boxes-os_boxes_site_logo no-title" module="boxes" delta="site_logo"><div class="block-inner clearfix"> <div class="block-content content" ng-non-bindable=""><div id="boxes-box-site_logo" class="boxes-box"><div class="boxes-box-content"><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/"><img src="https://web.archive.org/web/20210511063217im_/https://eventhorizontelescope.org/files/eht/files/eht_new_logo_04_cut2.png?m=1506538948" width="2502" height="442" alt="Event Horizon Telescope"/></a></div></div></div> </div></div></div></div> </div> </div> </header>   <div id="menu-bar" class="nav region-menu-bar clearfix"><nav id="block-os-primary-menu" class="block block-os no-title menu-wrapper menu-bar-wrapper clearfix" module="os" delta="primary-menu"> <ul class="nice-menu nice-menu-down nice-menu-primary-menu" id="nice-menu-primary-menu"><li class="menu-900 menu-path-front first odd "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/" title="">Home</a></li><li class="menu-488062 menuparent even "><a class="menu-heading">About EHT</a><span class="open-submenu"></span><ul><li class="menu-69802 menu-path-node-931791 first odd "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/about" title="">What is the EHT?</a></li><li class="menu-163350 menu-path-node-1097926 even "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/array" title="">EHT Array</a></li><li class="menu-155877 menu-path-node-1084331 odd "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/organization">Organization</a></li><li class="menu-155871 menu-path-node-1084381 even "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/affiliated-institutes" title="">Affiliated Institutes</a></li><li class="menu-764155 menu-path-node-1531573 odd "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/awards-eht">Awards by the EHT</a></li><li class="menu-680615 menu-path-https--eventhorizontelescopeorg-awards even "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/awards">Awards to the EHT</a></li><li class="menu-155874 menu-path-node-1084376 odd "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/funding-support">Funding Support</a></li><li class="menu-155876 menu-path-node-1084386 even last "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/industry-donors">Industry Donors</a></li></ul></li><li class="menu-69804 menu-path-node-931806 odd "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/science" title="">Science</a></li><li class="menu-69805 menu-path-node-931811 even "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/technology" title="">Technology</a></li><li class="menu-488064 menuparent odd "><a class="menu-heading" title="">Press & Media Resources</a><span class="open-submenu"></span><ul><li class="menu-498678 menu-path-https--eventhorizontelescopeorg-latest first odd "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/latest" title="">Latest Information</a></li><li class="menu-565303 menu-path-https--eventhorizontelescopeorg-press-release-april-10-2019-astronomers-capture-first-image-black-hole even "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/press-release-april-10-2019-astronomers-capture-first-image-black-hole">April 10 2019 Press Release</a></li><li class="menu-153183 menuparent odd "><a class="menu-heading" title="">Resources</a><span class="open-submenu"></span><ul><li class="menu-160499 menu-path-node-1091831 first odd "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/infographics">Infographics</a></li><li class="menu-162964 menu-path-node-1094571 even "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/simulations-gallery">Simulations</a></li><li class="menu-158267 menu-path---projectsiqharvardedu-eht-videos odd "><a href="//web.archive.org/web/20210511063217/https://projects.iq.harvard.edu/eht/videos">Videos</a></li><li class="menu-158441 menu-path-node-1089571 even last "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/links-0" title="">Links</a></li></ul></li><li class="menu-165451 menu-path-faq even "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/faq">FAQ</a></li><li class="menu-165229 menu-path-blog odd "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/blog" class="active">Blog</a></li><li class="menu-69803 menu-path-node-931801 even last "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/selected-news" title="">In The Media</a></li></ul></li><li class="menu-478139 menuparent even last "><a class="menu-heading">For Astronomers</a><span class="open-submenu"></span><ul><li class="menu-901 menu-path-publications first odd "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/publications" title="">Publications</a></li><li class="menu-478119 menu-path-https--eventhorizontelescopeorg-for-astronomers-memos even "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/for-astronomers/memos">EHT Memo Series</a></li><li class="menu-498620 menu-path-https--eventhorizontelescopeorg-for-astronomers-data odd "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/for-astronomers/data">EHT Data Products</a></li><li class="menu-478142 menu-path-https--eventhorizontelescopeorg-for-astronomers-proposals even "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/for-astronomers/proposals">EHT Proposals</a></li><li class="menu-157495 menu-path-node-932226 odd last "><a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/meeting-and-events">Meetings and Events</a></li></ul></li></ul> </nav></div>  <div id="columns" class="clearfix"> <div class="hg-container"> <div id="content-column" role="main"> <div class="content-inner"> <section id="main-content"> <a name="main-content"></a> <header id="main-content-header"> <h1 id="page-title" ng-non-bindable=""> EHT Observing Campaign 2020 Canceled Due to the COVID-19 Outbreak </h1> </header> <div id="content"> <article id="node-1492428" class="node node-blog node-sticky article clearfix" role="article"> <footer class="submitted"> <p class="author-datetime"><time datetime="2020-03-17T18:43:09-0400" pubdate="pubdate">March 17, 2020</time></p> </footer> <div class="node-content" ng-non-bindable=""> <div class="field field-name-body field-type-text-with-summary field-label-hidden view-mode-full"><div class="field-items"><div class="field-item even"><p> The global array of telescopes connected into the Event Horizon Telescope (EHT) was due to start observations at the end of March 2020 in order to expand and enhance the first set of results published approximately one year ago, including the <a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/press-release-april-10-2019-astronomers-capture-first-image-black-hole" target="_blank" title="">first-ever image of a black hole in the galaxy M87</a>. Regrettably, several participating observatories have shut down in response to the growing coronavirus (COVID-19) crisis and it was necessary to cancel the observations. A combination of weather patterns and celestial mechanics makes it impossible to perform a high-quality EHT observation at any part of the year other than this late March to early April time slot, so we will have to wait for March 2021 to try again. </p> <p> Progress on the聽<a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/science" target="_blank" title="">scientific goals of the EHT Collaboration</a> is secondary to the health and well-being of our collaboration members, our families, our institutions, and the people who work at the observatory and correlator facilities that support our efforts. It is heartbreaking that, for the second year in a row, circumstances beyond our control have forced cancellation of our observing campaign. On the brighter side, we obtained a rich trove of data from 2017 and 2018 observations. We will now devote our full concentration to completion of scientific publications from the 2017 data and dive into the analysis of data obtained with the enhanced EHT array in 2018. We are looking forward to observations with the <a href="https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/blog/global-web-tour-eht-observatories" target="_blank" title="">EHT array expanded to 11 observatories</a> in the spring of 2021. </p> </div></div></div> </div> </article> </div> </section> </div> </div> </div> </div>  <footer id="footer" class="clearfix" role="contentinfo">  <div class="at-panel gpanel panel-display footer clearfix"> <div class="region region-footer-first"><div class="region-inner clearfix"><div id="block-boxes-1499780549" class="block block-boxes block-boxes-os_boxes_follow no-title" module="boxes" delta="1499780549"><div class="block-inner clearfix"> <div class="block-content content" ng-non-bindable=""><div id="boxes-box-1499780549" class="boxes-box"><div class="boxes-box-content"><div class="item-list"><ul class="follow-me-links"><li><a href="https://web.archive.org/web/20210511063217/https://www.facebook.com/ehtelescope/" class="follow-icon" style="background-position: -531px 0px" target="_blank">https://www.facebook.com/ehtelescope/</a></li><li><a href="https://web.archive.org/web/20210511063217/https://twitter.com/ehtelescope" class="follow-icon" style="background-position: -189px 0px" target="_blank">https://twitter.com/ehtelescope</a></li><li><a href="https://web.archive.org/web/20210511063217/https://www.youtube.com/channel/UC4sItzYomoJ6Flt0aDyHMOQ" class="follow-icon" style="background-position: -94px 0px" target="_blank">https://www.youtube.com/channel/UC4sItzYomoJ6Flt0aDyHMOQ</a></li></ul></div></div></div></div> </div></div></div></div> <div class="region region-footer"><div class="region-inner clearfix"><div id="block-boxes-1498064181" class="block block-boxes block-boxes-os_boxes_html no-title" module="boxes" delta="1498064181"><div class="block-inner clearfix"> <div class="block-content content" ng-non-bindable=""><div id="boxes-box-1498064181" class="boxes-box"><div class="boxes-box-content"><h4> <span style="color:#ffffff"><span style="background-color:#000000">Copyright 漏</span></span><span style="color:#ffffff"><span style="background-color:#000000">聽2017-2021聽Event Horizon Telescope.</span></span> </h4> </div></div></div> </div></div></div></div> <div class="region region-footer-third"><div class="region-inner clearfix"><div id="block-boxes-solr-search-box" class="block block-boxes block-boxes-os_search_solr_search_box no-title" module="boxes" delta="solr_search_box"><div class="block-inner clearfix"> <div class="block-content content" ng-non-bindable=""><div id="boxes-box-solr_search_box" class="boxes-box"><div class="boxes-box-content"><form class="search-block-form" action="/web/20210511063217/https://eventhorizontelescope.org/blog/eht-observing-campaign-2020-canceled-due-covid-19-outbreak" method="post" id="search-block-form" accept-charset="UTF-8"><div><div class="container-inline"> <div class="form-item form-type-textfield form-item-search-block-form"> <label class="element-invisible" for="edit-search-block-form--2">Search </label> <input title="Enter the terms you wish to search for." ng-non-bindable="" type="search" id="edit-search-block-form--2" name="search_block_form" value="" size="15" maxlength="128" class="form-text"/> </div> <div class="form-actions form-actions form-wrapper" id="edit-actions"><input type="submit" id="edit-submit" name="op" value="Search" class="form-submit"/></div><input type="hidden" name="form_build_id" value="form-KRxNngEUdP55Pa_AcHwzmTCvknVAF_-M2SMxurEqkKo"/> <input type="hidden" name="form_id" value="os_solr_search_box___solr_search_box"/> </div></div></form></div></div></div> </div></div></div></div> <div class="region region-footer-bottom"><div class="region-inner clearfix"><div id="block-boxes-1495731156" class="block block-boxes block-boxes-os_boxes_media no-title" module="boxes" delta="1495731156"><div class="block-inner clearfix"> <div class="block-content content"><div id="boxes-box-1495731156" class="boxes-box"><div class="boxes-box-content"><div id="file-3492891" class="file file-html file-html-embed"> <h2 class="element-invisible"><a href="">ef99a7d9f1fc3004a3bef3edf90e8145</a></h2> <div class="content"> <div class="file-info"></div><div class="field field-name-field-html-code field-type-text-long field-label-hidden view-mode-full"><div class="field-items"><div class="field-item even"><style> @import url('https://web.archive.org/web/20210511063217cs_/https://fonts.googleapis.com/css?family=Open+Sans'); @font-face { font-family: 'Open Sans', sans-serif; src: url("https://web.archive.org/web/20210511063217im_/https://fonts.googleapis.com/css?family=Open+Sans"); } #menu-bar, #menu-bar ul.nice-menu ul { background: #000000; font-family: 'Open Sans', sans-serif; } #menu-bar ul.nice-menu li { margin-right: 20px; font-family: 'Open Sans', sans-serif; } .branding-container clearfix{ display: none; } .branding-right { float: right; line-height: 0px; margin: 0; text-transform: uppercase; display: none; } body { background: #FFF; font-size: 15px; font-family: 'Open Sans', sans-serif, 'Open Sans', sans-serif !important; } .sidebar .block, .front #content-column .block, #content-column .block.block-boxes-os_boxes_columns .block, .node-person .block-inner, .comment-wrapper { border-top: 6px solid #000000; } .branding-left { float: left; margin: 10px 0 0 -30px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: -300px; position: relative; z-index: 1; display: none; } #menu-bar ul.nice-menu a { font-family: 'Open Sans', sans-serif; } #menu-bar, #header, .region-header-third ul.nice-menu a { color: #000000; font-family: 'Open Sans', sans-serif, 'Open Sans', sans-serif !important; <div id="branding_header"> <div class="branding-container clearfix"> <div class="branding-left"><a href="http://www.harvard.edu"><img src="https://projects.iq.harvard.edu/profiles/openscholar/themes/hwpi_basetheme/images/harvard-logo.png" width="0" height="0" alt="Harvard Logo"></a></div><div class="branding-right"><a href="http://www.harvard.edu">HARVARD.EDU</a></div> </div> </div> } #menu-bar, #menu-bar ul.nice-menu ul { background: #000000; } #header{ background: #000000; background: url("https://web.archive.org/web/20210511063217im_/http://spaces.ucsd.edu/candlelight/wp-content/uploads/2014/10/black-color-block.gif") no-repeat center/120%; font-family: 'Open Sans', sans-serif, 'Open Sans', sans-serif !important; } #menu-bar ul.nice-menu .menuparent a:before { background-position: 0 -566px; /* White Arrow */ } .section-nav .menu-depth-1 > a { background: #000000 !important; font-family: 'Open Sans', sans-serif, 'Open Sans', sans-serif !important; } #search-block-form input.form-submit, #search-block-form #edit-submit, #search-form #edit-submit { background: url('/web/20210511063217im_/https://eventhorizontelescope.org/profiles/openscholar/themes/hwpi_basetheme/images/hwpi_basesprite.png') no-repeat 2px -441px #000000; height: 34px; font-family: 'Open Sans', sans-serif; } body, #page-title, .node-title, .page-search .title a, #content-column .block.block-boxes-os_boxes_manual_list .links.inline a, .more-link, .links a, .boxes-box-content h2, .section-nav a, #content-column h2, #content-column h3, #content-column h4, .block-boxes-os_taxonomy_fbt.navigation, .block-boxes-os_boxes_facetapi_vocabulary.navigation, #layout_16_9_side .slide-copy h2, #layout_3_1_overlay .slide-copy h2, #layout_16_9_below .slide-copy h2, #layout_16_9_overlay .slide-copy h2, h2.block-title, .region-header-third ul.nice-menu a, #boxes-box-site_info, #boxes-box-site_info a, #menu-bar ul.nice-menu a, .cke_editable * { font-family: 'Open Sans', sans-serif, 'Open Sans', sans-serif !important; } #footer ul.menu a, #footer ul.menu li ul li a, .block-boxes-os_taxonomy_fbt a, .section-nav a:link, .section-nav a:visited, .region-header-third ul.nice-menu a, #menu-bar ul.nice-menu a { font-family: 'Open Sans', sans-serif; } body { color: #000000; background: #ffffff; font-family: 'Open Sans', sans-serif; } #footer { background: #000000; border-top: 10px solid #000000; } .branding_footer{ display: none; } #columns a, #columns a:visited { color: #000000; text-decoration: underline !important; font-family: 'Open Sans', sans-serif; } #branding_footer .branding-container { height: 45px; line-height: 45px; background-color: black; visibility: hidden; } </style></div></div></div> </div> </div> </div></div></div> </div></div></div></div> </div>  <div id="powerby-login"> <a href="/web/20210511063217/https://eventhorizontelescope.org/user?destination=blog/eht-observing-campaign-2020-canceled-due-covid-19-outbreak%3Fadmin_panel%3D1%26login%3D1" class="footer-login">Admin Login</a> <div id="powered-by"><a href="https://web.archive.org/web/20210511063217/https://theopenscholar.com/">OpenScholar</a></div> </div> </footer> </div> </div> <div id="extradiv"></div>  <div id="branding_footer"> <div class="branding-container"> <div class="copyright"><span class="harvard-copyright">Copyright © 2021 The President and Fellows of Harvard College</span> | <a href="https://web.archive.org/web/20210511063217/https://hwp.harvard.edu/privacy-policy">Privacy</a> | <a href="https://web.archive.org/web/20210511063217/http://accessibility.harvard.edu/">Accessibility</a> | <a href="https://web.archive.org/web/20210511063217/https://accessibility.huit.harvard.edu/digital-accessibility-policy">Digital Accessibility</a> | <a href="https://web.archive.org/web/20210511063217/http://www.harvard.edu/reporting-copyright-infringements">Report Copyright Infringement</a></div> </div> </div> </div> <script src="//web.archive.org/web/20210511063217js_/https://static.projects.iq.harvard.edu/profiles/openscholar/libraries/respondjs/respond.min.js?qsoy9z"></script> <script src="//web.archive.org/web/20210511063217js_/https://static.projects.iq.harvard.edu/files/js/js_wKyFX46tVKJtPKN12qNjRfS4aubW4G2u7LK22vlDiKo.js?m=1619183870"></script> <script>jQuery.extend(Drupal.settings, {"basePath":"\/","pathPrefix":"","ajaxPageState":{"theme":"hwpi_classic","theme_token":"usnbRrt3XftFc4GTSPAZ87XqQHzOQTMs7OSrpJ2zEhg"},"colorbox":{"opacity":"0.85","current":"{current} of {total}","previous":"\u00ab Prev","next":"Next \u00bb","close":"Close","maxWidth":"98%","maxHeight":"98%","fixed":true,"mobiledetect":true,"mobiledevicewidth":"480px"},"jcarousel":{"ajaxPath":"https:\/\/web.archive.org\/web\/20210511063217\/https:\/\/eventhorizontelescope.org\/jcarousel\/ajax\/views"},"urlIsAjaxTrusted":{"\/blog\/eht-observing-campaign-2020-canceled-due-covid-19-outbreak":true,"https:\/\/web.archive.org\/web\/20210511063217\/https:\/\/eventhorizontelescope.org\/search\/site":true},"spaces":{"id":"931786","path":"Event Horizon Telescope"},"os_ga":{"trackOutbound":1,"trackMailto":1,"trackDownload":1,"trackDownloadExtensions":"7z|aac|arc|arj|asf|asx|avi|bin|csv|docx?|exe|flv|gif|gz|gzip|hqx|jar|jpe?g|js|mp(2|3|4|e?g)|mov(ie)?|msi|msp|pdf|phps|png|ppt|qtm?|ra(m|r)?|sea|sit|tar|tgz|torrent|txt|wav|wma|wmv|wpd|xlsx?|xml|z|zip","trackNavigation":1},"paths":{"api":"\/api","siteCreationForm":"\/profiles\/openscholar\/modules\/frontend\/os_site_creation\/templates","siteCreationModuleRoot":"\/profiles\/openscholar\/modules\/frontend\/os_site_creation","hasOsId":false},"user":{"uid":0,"name":null},"admin_panel":{"purl_base_domain":"https:\/\/web.archive.org\/web\/20210511063217\/https:\/\/projects.iq.harvard.edu","base_domain":"https:\/\/web.archive.org\/web\/20210511063217\/https:\/\/eventhorizontelescope.org"},"version":{"siteCreationForm":"1.0.4"},"site_creation":{"subsite_types":{"personal":"personal","project":"project","department":"department"},"privacy_levels":{"0":"Public on the web. \u003Cbr\u003E\u003Cspan class=\u0022description\u0022\u003EAnyone on the Internet can view your site. Your site will show in search results. No sign-in required.\u003C\/span\u003E","2":"Anyone with the link. \u003Cbr\u003E\u003Cspan class=\u0022description\u0022\u003EAnyone who has the URL to your site can view your site. Your site will not be indexed by search engines.\u003C\/span\u003E","1":"Site members only. \u003Cbr\u003E\u003Cspan class=\u0022description\u0022\u003EThis setting can be useful during site creation. Your site will not be indexed by search engines.\u003C\/span\u003E","4":"Harvard Community\u003Cbr\u003E\u003Cspan class=\u0027description\u0027\u003EOnly the Harvard community can access your site. Sign-in via HarvardKey required.\u003C\/span\u003E"},"tos_label":"OpenScholar Terms of Use","tos_url":"https:\/\/web.archive.org\/web\/20210511063217\/https:\/\/hwp.harvard.edu\/terms-use","presets":{"os_department_minimal":{"name":"os_department_minimal","title":"Minimal","description":"Blank site with no pre-set menu links or pages.","site_type":"department"},"os_department":{"name":"os_department","title":"Academic","description":"Pre-set menu links and pages: Academics, Research, Activities, People, Resources, News \u0026amp; Events, About","site_type":"department"},"os_project":{"name":"os_project","title":"Minimal","description":"Blank site with no pre-set menu links or pages.","site_type":"project"},"os_scholar":{"name":"os_scholar","title":"Minimal","description":"Blank site with no pre-set menu links or pages.","site_type":"personal"},"osllc_preset_gradstudent":{"name":"osllc_preset_gradstudent","title":"Grad Student\/Adjunct","description":"A site for grad students or adjuncts currently in the job market","site_type":"personal"},"osllc_preset_medical_professional":{"name":"osllc_preset_medical_professional","title":"Medical Professional","description":"A site for doctors and other medical professionals.","site_type":"personal"},"osllc_preset_project":{"name":"osllc_preset_project","title":"Project Site","description":"A site for a project, separate from any individual involved.","site_type":"personal"},"hwp_administrative":{"name":"hwp_administrative","title":"Administrative","description":"The Harvard Web Publishing standard Adminstrative Department site.","site_type":"department"},"hwp_lab_research_group":{"name":"hwp_lab_research_group","title":"Lab\/Research Group","description":"The Harvard Web Publishing standard Lab and Research Group site.","site_type":"project"},"hwp_project":{"name":"hwp_project","title":"Project","description":"The Harvard Web Publishing standard Project site.","site_type":"project"},"hwp_personal":{"name":"hwp_personal","title":"Personal","description":"The Harvard Web Publishing standard Personal site.","site_type":"personal"},"hwp_event_conference":{"name":"hwp_event_conference","title":"Event\/Conference","description":"The Harvard Web Publishing standard Event or Conference site.","site_type":"project"}},"default_individual_scholar":"os_scholar","default_project_lab_small_group":"os_project","default_department_school":"os_department_minimal"},"nice_menus_options":{"delay":800,"speed":"slow"},"ogContext":{"groupType":"node","gid":"931786"},"password":{"strengthTitle":"Password compliance:"},"type":"setting"});</script> <script src="//web.archive.org/web/20210511063217js_/https://ajax.googleapis.com/ajax/libs/angularjs/1.4.6/angular.js"></script> <script src="//web.archive.org/web/20210511063217js_/https://ajax.googleapis.com/ajax/libs/angularjs/1.4.6/angular-sanitize.js"></script> <script src="//web.archive.org/web/20210511063217js_/https://ajax.googleapis.com/ajax/libs/angularjs/1.4.6/angular-cookies.js"></script> <script src="//web.archive.org/web/20210511063217js_/https://cdnjs.cloudflare.com/ajax/libs/ngStorage/0.3.9/ngStorage.min.js"></script> <script src="//web.archive.org/web/20210511063217js_/https://static.projects.iq.harvard.edu/files/js/js_4_I5zysxotUGauTh75nm6vbnXf5LPdUwW8k52vZgp80.js?m=1619183775"></script> <script src="//web.archive.org/web/20210511063217js_/https://static.projects.iq.harvard.edu/files/js/js_Y1FBKf83E3J9MQtFPjbc5aPABrOfDhLHCFnDQJdtDSk.js?m=1619183894"></script> <script>window.CKEDITOR_BASEPATH = '/profiles/openscholar/libraries/ckeditor/'</script> <script>var _gaq = _gaq || [];_gaq.push(["_setAccount", "UA-17689007-1"]);_gaq.push(["_gat._anonymizeIp"]);_gaq.push(["_trackPageview"]);_gaq.push(['_setCustomVar',1,'Site homepage','https://web.archive.org/web/20210511063217/https://eventhorizontelescope.org/',3]);_gaq.push(["_setAccount", "UA-101867808-1"]);_gaq.push(["_gat._anonymizeIp"]);_gaq.push(["_trackPageview"]);(function() {var ga = document.createElement("script");ga.type = "text/javascript";ga.async = true;ga.src = ("https:" == document.location.protocol ? "https://web.archive.org/web/20210511063217/https://ssl" : "https://web.archive.org/web/20210511063217/http://www") + ".google-analytics.com/ga.js";var s = document.getElementsByTagName("script")[0];s.parentNode.insertBefore(ga, s);})();var addthis_config = {data_ga_social: true, data_ga_property: "UA-101867808-1"};</script> <script src="//web.archive.org/web/20210511063217js_/https://static.projects.iq.harvard.edu/files/js/js_LiusrpwJT3Sg0H0ZmGojUVryUYFnHLCv1UjzLbWcgsw.js?m=1619183906"></script> <script src="//web.archive.org/web/20210511063217js_/https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-MML-AM_CHTML"></script> <script>(function ($) { angular.module('openscholar', ['SiteCreationForm']); })();</script> <script src="//web.archive.org/web/20210511063217js_/https://static.projects.iq.harvard.edu/files/js/js_TF0j_xSQPq-6QP1Il7NFw8ppuW60PTAxM0BwHtQXBsA.js?m=1618944877"></script> <script src="//web.archive.org/web/20210511063217js_/https://static.projects.iq.harvard.edu/files/js/js_qluyoBMkmyevXrrhnKB_2ie6cLJ7DL5g_0nHm6hyXwA.js?m=1619183863"></script> </body> </html>