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<!DOCTYPE html> <html> <head> <title> SPHEREx | IPAC </title> <meta content='text/html; charset=utf-8' http-equiv='Content-Type'> <meta content='IE=edge,chrome=1' http-equiv='X-UA-Compatible'> <meta content='width=device-width,initial-scale=1' name='viewport'> <link href="https://cdn.knightlab.com/libs/timeline3/latest/css/timeline.css" media="screen" rel="stylesheet" type="text/css" /> <script src='https://cdn.knightlab.com/libs/timeline3/latest/js/timeline.js'></script> <link href='https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.5.2/animate.min.css' rel='stylesheet'> <link href='/favicon/apple-icon-57x57.png' rel='apple-touch-icon' sizes='57x57'> <link href='/favicon/apple-icon-60x60.png' rel='apple-touch-icon' sizes='60x60'> <link href='/favicon/apple-icon-72x72.png' rel='apple-touch-icon' sizes='72x72'> <link href='/favicon/apple-icon-76x76.png' rel='apple-touch-icon' sizes='76x76'> <link href='/favicon/apple-icon-114x114.png' rel='apple-touch-icon' sizes='114x114'> <link href='/favicon/apple-icon-120x120.png' rel='apple-touch-icon' sizes='120x120'> <link href='/favicon/apple-icon-144x144.png' rel='apple-touch-icon' sizes='144x144'> <link href='/favicon/apple-icon-152x152.png' rel='apple-touch-icon' sizes='152x152'> <link href='/favicon/apple-icon-180x180.png' rel='apple-touch-icon' sizes='180x180'> <link href='/favicon/android-icon-192x192.png' rel='icon' sizes='192x192' type='image/png'> <link href='/favicon/favicon-32x32.png' rel='icon' sizes='32x32' type='image/png'> <link href='/favicon/favicon-96x96.png' rel='icon' sizes='96x96' type='image/png'> <link href='/favicon/favicon-16x16.png' rel='icon' sizes='16x16' type='image/png'> <link href='/favicon/manifest.json' rel='manifest'> <meta content='#ffffff' name='msapplication-TileColor'> <meta content='/favicon/ms-icon-144x144.png' name='msapplication-TileImage'> <meta content='#ffffff' name='theme-color'> <meta content='IPAC' property='og:site_name'> <meta content='Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer' property='og:title'> <meta content='Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer' name='title'> <meta content='https://www.ipac.caltech.edu/system/activities/images/80/page/spherex_NASA_APSv4.jpg?1565396348' property='og:image'> <meta content='https://www.ipac.caltech.edu/system/activities/images/80/page/spherex_NASA_APSv4.jpg?1565396348' name='image'> <meta content='https://www.ipac.caltech.edu/project/spherex' property='og:url'> <meta content='article' property='og:type'> <meta content='SPHEREx is a NASA Medium Explorer mission designed to 1) constrain the physics of inflation by measuring its imprints on the three-dimensional large-scale distribution of matter, 2) trace the history of galactic light production through a deep multi-band measurement of large-scale clustering, and 3) investigate the abundance and composition of water and biogenic ices in the early phases of star and planetary disk formation. SPHEREx will obtain near-infrared 0.75-5.0 um spectra every 6" over the entire sky. It implements a simple instrument design with a single observing mode to map the entire sky four times during its nominal 25-month mission. SPHEREx will also have strong scientific synergies with other missions and observatories, resulting in a rich legacy archive of spectra that will bear on numerous scientific investigations. The mission PI is Jamie Bock (Caltech). SPHEREx is scheduled to launch towards the end of February 2025.' name='description'> <meta content='SPHEREx is a NASA Medium Explorer mission designed to 1) constrain the physics of inflation by measuring its imprints on the three-dimensional large-scale distribution of matter, 2) trace the history of galactic light production through a deep multi-band measurement of large-scale clustering, and 3) investigate the abundance and composition of water and biogenic ices in the early phases of star and planetary disk formation. SPHEREx will obtain near-infrared 0.75-5.0 um spectra every 6" over the entire sky. It implements a simple instrument design with a single observing mode to map the entire sky four times during its nominal 25-month mission. SPHEREx will also have strong scientific synergies with other missions and observatories, resulting in a rich legacy archive of spectra that will bear on numerous scientific investigations. The mission PI is Jamie Bock (Caltech). SPHEREx is scheduled to launch towards the end of February 2025.' property='og:description'>  <script type='application/ld+json'> {"@context" : "http://schema.org", "@type" : "Organization", "name" : "IPAC", "url" : "https://ipac.caltech.edu", "logo": "https://ipac.caltech.edu/assets/hero_images/NED-allsky.jpg"} </script> <link href="/assets/application-d21c377013c9cee49223c2c5a3d7ad2a.css" media="screen" rel="stylesheet" type="text/css" /> <meta content="authenticity_token" name="csrf-param" /> <meta content="zLXJs/ka8lSSqteCVLas/WX0WQild+4OF+nfP+A0YCI=" name="csrf-token" /> </head> <body> <div class='service_message'> <div class='container'> <div class='row'> <div class='col-md-12'> Tune in to IPAC's Double Launch Feature! 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class='row'> <div class='col-md-12'> <div class='project_page_title'> <div class='logo_image page_title'> <img alt="Spherex-2020logo_color_white_bg" src="/system/activities/logos/80/small/spherex-2020logo_color_white_bg.png?1676315075" /> </div> </div> <div class='clearfix'></div> </div> </div> </div> </div> <div class='container offset_container'> <div class='row'> <div class='col-md-12'> <div class='content_box'> <div class='abstract_box'> <div class='row'> <div class='col-md-9'> <div class='abstract'> <p> <strong> Overview: </strong> SPHEREx is a NASA Medium Explorer mission designed to 1) constrain the physics of inflation by measuring its imprints on the three-dimensional large-scale distribution of matter, 2) trace the history of galactic light production through a deep multi-band measurement of large-scale clustering, and 3) investigate the abundance and composition of water and biogenic ices in the early phases of star and planetary disk formation. SPHEREx will obtain near-infrared 0.75-5.0 um spectra every 6" over the entire sky. It implements a simple instrument design with a single observing mode to map the entire sky four times during its nominal 25-month mission. SPHEREx will also have strong scientific synergies with other missions and observatories, resulting in a rich legacy archive of spectra that will bear on numerous scientific investigations. The mission PI is Jamie Bock (Caltech). SPHEREx is scheduled to launch towards the end of February 2025. </p> </div> </div> <div class='col-md-3'> <div class='related_links'> <dl> <div class='sidebar_title'> Links </div> <dd> <a href="http://spherex.caltech.edu/" target="_ipac">SPHEREx Homepage <i class='fa fa-external-link'></i> </a></dd> <dd> <a href="" target=""> </a></dd> </dl> </div> </div> </div> </div> <div class='raw raw_offset'> <p> SPHEREx is an all-sky spectroscopic survey mission conducting 4 all-sky surveys over 2 years, providing the first near-infrared all-sky spectral survey for the astronomical community with a data pipeline operated at IPAC and a data archive hosted by the NASA IPAC Infrared Science Archive.</p> <div class="image_container"> <div class="aspect_ratio" style="position:relative; width:100%;height:0;padding-bottom:56.25%"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" frameborder="0" src="https://www.youtube.com/embed/0Olh2nQdL-8?si=urDvyDmEfRk6eYDt" style="position:absolute;width:100%;height:100%;left:0;top:0"></iframe></div> <div class="caption"> Dimensions of IPAC explores the wide spectrum of activities happening at IPAC, and here we highlight IPAC's role in the SPHEREx mission. Written and directed by Chiara Villanueva.</div> </div> <p>  </p> </div> </div> <div class='clearfix'></div> </div> </div> </div> <div class='fluid_box news_box'> <div class='container'> <div class='row'> <div class='col-md-12'> <h4> Mission News </h4> </div> </div> <div class='row'> <div class='col-md-4'> <div class='card_box project_news_card'> <a href="https://www.spherex.caltech.edu/news/nasa-sets-launch-coverage-for-missions-studying-cosmic-origins-sun" target="_IPAC_spherex"><div class='card_image'> <img alt="Spherex" src="https://www.spherex.caltech.edu/system/articles/images/78/original/spherex.png?1740176114" /> <div class='card_title'> <h5 class='text_shadow'> NASA Sets Launch Coverage for Missions Studying Cosmic Origins, Sun </h5> </div> </div> <p class='small text_flair'> News Release • February 18th, 2025 </p> <p> NASA will provide live coverage of prelaunch and launch activities for SPHEREx (Spectro-Photometer for the History of... </p> </a><div class='clearfix'></div> </div> </div> <div class='col-md-4'> <div class='card_box project_news_card'> <a href="https://www.spherex.caltech.edu/news/nasa-s-spherex-space-telescope-will-seek-life-s-ingredients" target="_IPAC_spherex"><div class='card_image'> <img alt="1-webb-molecular-cloud-ices" src="https://www.spherex.caltech.edu/system/articles/images/76/original/1-webb-molecular-cloud-ices.png?1739466273" /> <div class='card_title'> <h5 class='text_shadow'> NASA鈥檚 SPHEREx Space Telescope Will Seek Life鈥檚 Ingredients </h5> </div> </div> <p class='small text_flair'> News Release • February 13th, 2025 </p> <p> Where is all the water that may form oceans on distant planets and moons? The SPHEREx astrophysics mission will... </p> </a><div class='clearfix'></div> </div> </div> <div class='col-md-4'> <div class='card_box project_news_card'> <a href="https://www.spherex.caltech.edu/news/77" target="_IPAC_spherex"><div class='card_image'> <img alt="Spherexnearslaunchqa" src="https://www.spherex.caltech.edu/system/articles/images/77/original/SPHERExNearsLaunchQA.jpg?1739486335" /> <div class='card_title'> <h5 class='text_shadow'> SPHEREx Nears Launch (LIVE Q+A) </h5> </div> </div> <p class='small text_flair'> News Release • February 13th, 2025 </p> <p> We are less than 15 days away from launching SPHEREx, a mission that will observe hundreds of millions of stars and... </p> </a><div class='clearfix'></div> </div> </div> </div> <div class='row'> <div class='col-md-4'> <div class='card_box project_news_card'> <a href="https://www.spherex.caltech.edu/news/75" target="_IPAC_spherex"><div class='card_image'> <img alt="Image" src="https://www.spherex.caltech.edu/system/articles/images/75/original/Image.png?1738369283" /> <div class='card_title'> <h5 class='text_shadow'> SPHEREx L-30 News Briefing </h5> </div> </div> <p class='small text_flair'> News Release • January 31st, 2025 </p> <p> NASA previews SPHEREx, space telescope mission to explore universe鈥檚 origins. </p> </a><div class='clearfix'></div> </div> </div> <div class='col-md-4'> <div class='card_box project_news_card'> <a href="https://www.spherex.caltech.edu/news/73" target="_IPAC_spherex"><div class='card_image'> <img alt="Astrotech_vsfb_2" src="https://www.spherex.caltech.edu/system/articles/images/73/original/astrotech_VSFB_2.jpg?1738195862" /> <div class='card_title'> <h5 class='text_shadow'> SPHEREx Begins Integration with PUNCH </h5> </div> </div> <p class='small text_flair'> News Release • January 29th, 2025 </p> <p> The SPHEREx Observatory has completed standalone operations in the West High Bay at Astrotech Space Operations... </p> </a><div class='clearfix'></div> </div> </div> <div class='col-md-4'> <div class='card_box project_news_card'> <a href="https://www.spherex.caltech.edu/news/72" target="_IPAC_spherex"><div class='card_image'> <img alt="Hqdefault" src="https://www.spherex.caltech.edu/system/articles/images/72/original/hqdefault.jpg?1738092131" /> <div class='card_title'> <h5 class='text_shadow'> Spacecraft Makers: SPHEREx and the Intense Tests That Prepared It for Space </h5> </div> </div> <p class='small text_flair'> News Release • January 28th, 2025 </p> <p> Short for Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer, SPHEREx aims... </p> </a><div class='clearfix'></div> </div> </div> </div> <div class='col-md-12'> <a href="https://spherex.caltech.edu/news" class="more_link" target="_IPAC_spherex">More Mission News <i class='fa fa-chevron-right'></i> </a></div> </div> </div> </div> <div class='footer_box'> <div class='container'> <div class='row'> <div 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