{"id":362508,"date":"2026-02-05T02:18:29","date_gmt":"2026-02-04T16:18:29","guid":{"rendered":"https:\/\/science.nasa.gov\/photojournal\/nasas-spherex-examines-comet-3i-atlass-coma\/"},"modified":"2026-02-05T02:18:29","modified_gmt":"2026-02-04T16:18:29","slug":"nasas-spherex-examines-comet-3i-atlass-coma","status":"publish","type":"post","link":"https:\/\/www.vibewire.com.au\/?p=362508","title":{"rendered":"NASA\u2019s SPHEREx Examines Comet 3I\/ATLAS\u2019s Coma"},"content":{"rendered":"<div id=\"\" class=\"hds-article-hero-header nasa-gb-align-full bg-carbon-90 width-full maxw-full color-mode-dark hds-module hds-module-full alignfull wp-block-nasa-blocks-article-hero-header\">\n<div class=\"hds-cover-wrapper width-full maxw-full minh-tablet grid-container minh-tablet flex-column padding-0\">\n<div class=\"hds-foreground-wrapper display-flex flex-direction-column\">\n<div class=\"grid-container grid-container-block margin-top-auto width-full maxw-desktop-lg padding-y-9 padding-x-3 desktop:padding-x-3 z-400\">\n<div class=\"z-400 grid-col-12 tablet:grid-col-12 desktop:grid-col-7 z-400\">\n<div class=\"margin-0\">\n<div class=\"label color-spacesuit-white margin-bottom-2\">2 Min Read<\/div>\n<h1 class=\"heading-41 line-height-md color-spacesuit-white-important\">\n\t\t\t\t\t\t\t\tNASA\u2019s SPHEREx Examines Comet 3I\/ATLAS\u2019s Coma\t\t\t\t\t\t\t<\/h1>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"grid-col-12 tablet:grid-col-12 desktop:grid-col-5\"><\/div>\n<div class=\"skrim-overlay skrim-left mobile-skrim-top z-200\"><\/div>\n<figure class=\"hds-media-background  \"><img fetchpriority=\"high\" decoding=\"async\" width=\"1920\" height=\"1912\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=1920&#038;h=1912&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"These observations by NASA\u2019s SPHEREx show the infrared light emitted by the dust, water, organic molecules, and carbon dioxide contained within comet 3I\/ATLAS\u2019s coma during the mission\u2019s December 2025 campaign.\" style=\"transform: scale(1.2); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"eager\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=1920&#038;h=1912&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1920w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=150&#038;h=149&#038;fit=crop&#038;crop=faces%2Cfocalpoint 150w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=300&#038;h=299&#038;fit=crop&#038;crop=faces%2Cfocalpoint 300w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=768&#038;h=765&#038;fit=crop&#038;crop=faces%2Cfocalpoint 768w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=1024&#038;h=1020&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1024w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=1536&#038;h=1530&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1536w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=50&#038;h=50&#038;fit=crop&#038;crop=faces%2Cfocalpoint 50w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=100&#038;h=100&#038;fit=crop&#038;crop=faces%2Cfocalpoint 100w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=200&#038;h=199&#038;fit=crop&#038;crop=faces%2Cfocalpoint 200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=400&#038;h=398&#038;fit=crop&#038;crop=faces%2Cfocalpoint 400w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=600&#038;h=598&#038;fit=crop&#038;crop=faces%2Cfocalpoint 600w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=900&#038;h=896&#038;fit=crop&#038;crop=faces%2Cfocalpoint 900w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=1200&#038;h=1195&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1200w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"padding-y-3 padding-x-3\">\n<div class=\"grid-container grid-container-block padding-x-0\"><figcaption class=\"hds-caption maxw-mobile desktop:padding-x-3\">\n<div class=\"hds-caption-text p-sm margin-0 color-carbon-30\">\n<div><figcaption>PIA26720<\/figcaption><\/div>\n<\/p>\n<\/div>\n<div class=\"hds-credits color-spacesuit-white-important\">\n\t\t\t\t\t\t\t<span>Credits: <\/span><br 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data-video-loop=\"\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=1920&#038;h=1912&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1920w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=150&#038;h=149&#038;fit=crop&#038;crop=faces%2Cfocalpoint 150w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=300&#038;h=299&#038;fit=crop&#038;crop=faces%2Cfocalpoint 300w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=768&#038;h=765&#038;fit=crop&#038;crop=faces%2Cfocalpoint 768w, 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https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=200&#038;h=199&#038;fit=crop&#038;crop=faces%2Cfocalpoint 200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=400&#038;h=398&#038;fit=crop&#038;crop=faces%2Cfocalpoint 400w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=600&#038;h=598&#038;fit=crop&#038;crop=faces%2Cfocalpoint 600w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=900&#038;h=896&#038;fit=crop&#038;crop=faces%2Cfocalpoint 900w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png?w=1200&#038;h=1195&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1200w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n<\/div>\n<\/div>\n<div class=\"hds-list-details\">\n<div class=\"hds-list-name hds-file-list-name\">\n<h2 class=\"heading-22\">NASA\u2019s SPHEREx Examines Comet 3I\/ATLAS\u2019s Coma<\/h2>\n<\/p>\n<\/div>\n<div class=\"hds-list-meta\">\n<div class=\"hds-list-meta-item hds-list-date hds-file-list-date\">\n<p class=\"p-sm\">\n<\/div>\n<div class=\"hds-list-meta-item hds-file-list-filetype\">\n<p class=\"p-sm\">PNG (1.87 MB)<\/p>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"hds-list-cta hds-file-list-download\">\n\t\t\t\t\t<a href=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/psd\/photojournal\/pia\/pia26\/pia26720\/PIA26720_SPHEREx_3I_4panel_colorized.png\"  download rel=\"noopener\"><br \/>\n\t\t\t\t\t\t<svg width=\"32\" height=\"32\" viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle cx=\"16\" cy=\"16.0001\" r=\"16\" fill=\"#1C67E3\"\/><path d=\"M15.2357 8.00007L15.2357 16.4829L11.9504 13.4078L10.8801 14.4094L16.0001 19.2001L21.1201 14.4094L20.0499 13.4078L16.7645 16.4829L16.7645 8.00007L15.2357 8.00007Z\" fill=\"white\"\/><path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M9.6 20.8001V18.4001H8V22.4001H24V18.4001H22.4V20.8001H9.6Z\" fill=\"white\"\/><\/svg><br \/>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2 class=\"wp-block-heading\">Description<\/h2>\n<p>These observations by NASA\u2019s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) show the infrared light emitted by the dust, water, organic molecules, and carbon dioxide contained within comet 3I\/ATLAS\u2019s coma. The comet brightened significantly during the December 2025 period when SPHEREx made the observations \u2014 about two months after the icy body had passed its closest distance to the Sun in late October.<\/p>\n<p>The space telescope has the singular capability of seeing the sky in 102 colors, each representing a wavelength of infrared light that provides unique information about galaxies, stars, planet-forming regions, or other cosmic features, including the various gases and dust seen in the coma of 3I\/ATLAS. The information gathered by SPHEREx helps scientists better understand what materials 3I\/ATLAS contains and how the interstellar object\u2019s pristine ices react to the Sun\u2019s heating as the comet journeys through the solar system.<\/p>\n<p>The mission is managed by NASA\u2019s Jet Propulsion Laboratory in Southern California for the agency\u2019s Astrophysics Division within the Science Mission Directorate in Washington. The telescope and the spacecraft bus were built by BAE Systems. The science analysis of the SPHEREx data is being conducted by a team of scientists at 13 institutions across the U.S., and in South Korea and Taiwan, led by Principal Investigator Jamie Bock, based at Caltech with a joint JPL appointment, and by JPL Project Scientist Olivier Dore. Data is processed and archived at IPAC at Caltech in Pasadena, which manages JPL for NASA. The SPHEREx dataset is\u00a0<a href=\"https:\/\/www.jpl.nasa.gov\/news\/how-nasas-spherex-mission-will-share-its-all-sky-map-with-the-world\/\" rel=\"noopener\">freely available to scientists<\/a>\u00a0and the public.<\/p>\n<p>For more information about the SPHEREx mission visit: <a href=\"https:\/\/science.nasa.gov\/mission\/spherex\/\" rel=\"noopener\"><strong>https:\/\/science.nasa.gov\/mission\/spherex\/<\/strong><\/a><\/p>\n<div id=\"\" class=\"hds-topic-cards nasa-gb-align-full maxw-full width-full padding-y-6 padding-x-3 color-mode-dark hds-module hds-module-full alignfull wp-block-nasa-blocks-topic-cards\">\n<div class=\"grid-container grid-container-block-lg padding-x-0\">\n<div class=\"grid-row flex-align-center margin-bottom-3\">\n<div class=\"desktop:grid-col-8 margin-bottom-2 desktop:margin-bottom-0\">\n<div class=\"label color-carbon-60 margin-bottom-2\">Keep Exploring<\/div>\n<h2 class=\"heading-36 line-height-sm\">Discover More Topics From Photojournal<\/h2>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"grid-row grid-gap-2 hds-topic-cards-wrapper\">\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/photojournal\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Photojournal<\/span><br \/>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"5000\" height=\"1848\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=5000&#038;h=1848&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=5000&#038;h=1848&#038;fit=crop&#038;crop=faces%2Cfocalpoint 5000w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=300&#038;h=111&#038;fit=crop&#038;crop=faces%2Cfocalpoint 300w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=768&#038;h=284&#038;fit=crop&#038;crop=faces%2Cfocalpoint 768w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=1024&#038;h=378&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1024w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=1536&#038;h=568&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1536w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=2048&#038;h=757&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2048w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=400&#038;h=148&#038;fit=crop&#038;crop=faces%2Cfocalpoint 400w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=600&#038;h=222&#038;fit=crop&#038;crop=faces%2Cfocalpoint 600w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=900&#038;h=333&#038;fit=crop&#038;crop=faces%2Cfocalpoint 900w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=1200&#038;h=444&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia22\/pia22567\/PIA22567.jpg?w=2000&#038;h=739&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2000w\" sizes=\"auto, (max-width: 5000px) 100vw, 5000px\" \/><\/figure>\n<\/p>\n<\/div>\n<p>\t\t\t<\/a><br \/>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/photojournal\/search\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Search Photojournal<\/span><br \/>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"1014\" height=\"1014\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25729\/PIA25729.jpg?w=1014&#038;h=1014&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25729\/PIA25729.jpg?w=1014&#038;h=1014&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1014w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25729\/PIA25729.jpg?w=150&#038;h=150&#038;fit=crop&#038;crop=faces%2Cfocalpoint 150w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25729\/PIA25729.jpg?w=300&#038;h=300&#038;fit=crop&#038;crop=faces%2Cfocalpoint 300w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25729\/PIA25729.jpg?w=768&#038;h=768&#038;fit=crop&#038;crop=faces%2Cfocalpoint 768w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25729\/PIA25729.jpg?w=50&#038;h=50&#038;fit=crop&#038;crop=faces%2Cfocalpoint 50w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25729\/PIA25729.jpg?w=100&#038;h=100&#038;fit=crop&#038;crop=faces%2Cfocalpoint 100w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25729\/PIA25729.jpg?w=200&#038;h=200&#038;fit=crop&#038;crop=faces%2Cfocalpoint 200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25729\/PIA25729.jpg?w=400&#038;h=400&#038;fit=crop&#038;crop=faces%2Cfocalpoint 400w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25729\/PIA25729.jpg?w=600&#038;h=600&#038;fit=crop&#038;crop=faces%2Cfocalpoint 600w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25729\/PIA25729.jpg?w=900&#038;h=900&#038;fit=crop&#038;crop=faces%2Cfocalpoint 900w\" sizes=\"auto, (max-width: 1014px) 100vw, 1014px\" \/><\/figure>\n<\/p>\n<\/div>\n<p>\t\t\t<\/a><br \/>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/photojournal\/latest\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Photojournal\u2019s Latest Content<\/span><br \/>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"21969\" height=\"14501\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=21969&#038;h=14501&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=21969&#038;h=14501&#038;fit=crop&#038;crop=faces%2Cfocalpoint 21969w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=300&#038;h=198&#038;fit=crop&#038;crop=faces%2Cfocalpoint 300w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=768&#038;h=507&#038;fit=crop&#038;crop=faces%2Cfocalpoint 768w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=1024&#038;h=676&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1024w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=1536&#038;h=1014&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1536w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=2048&#038;h=1352&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2048w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=400&#038;h=264&#038;fit=crop&#038;crop=faces%2Cfocalpoint 400w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=600&#038;h=396&#038;fit=crop&#038;crop=faces%2Cfocalpoint 600w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=900&#038;h=594&#038;fit=crop&#038;crop=faces%2Cfocalpoint 900w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=1200&#038;h=792&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia24\/pia24543\/PIA24543.jpg?w=2000&#038;h=1320&#038;fit=crop&#038;crop=faces%2Cfocalpoint 2000w\" sizes=\"auto, (max-width: 21969px) 100vw, 21969px\" \/><\/figure>\n<\/p>\n<\/div>\n<p>\t\t\t<\/a><br \/>\n\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/photojournal\/feedback\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\" rel=\"noopener\"><\/p>\n<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n<div>\n<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Feedback<\/span><br \/>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"2002\" height=\"1125\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/psd\/photojournal\/pia\/pia25\/pia25691\/PIA25691.jpg?w=2002&#038;h=1125&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); 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The comet brightened significantly during the December 2025 period when SPHEREx made the observations \u2014 about two [\u2026]<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[18834],"tags":[],"class_list":["post-362508","post","type-post","status-publish","format-standard","hentry","category-photojournal"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"Description These observations by NASA\u2019s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) show the infrared light emitted by the dust, water, organic molecules, and carbon dioxide contained within comet 3I\/ATLAS\u2019s coma. 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