{"id":271139,"date":"2025-11-08T13:39:10","date_gmt":"2025-11-08T13:39:10","guid":{"rendered":"https:\/\/www.newsbeep.com\/au\/271139\/"},"modified":"2025-11-08T13:39:10","modified_gmt":"2025-11-08T13:39:10","slug":"a-complex-jet-structure-emanates-from-3i-atlas-after-perihelion-by-avi-loeb-nov-2025","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/au\/271139\/","title":{"rendered":"A Complex Jet Structure Emanates from 3I\/ATLAS After Perihelion | by Avi Loeb | Nov, 2025"},"content":{"rendered":"<p><a rel=\"noopener follow nofollow\" href=\"https:\/\/avi-loeb.medium.com\/?source=post_page---byline--1cc7f8ec7b81---------------------------------------\" data-discover=\"true\" target=\"_blank\"><img decoding=\"async\" alt=\"Avi Loeb\" class=\"m fk by bz ca de\" src=\"https:\/\/www.newsbeep.com\/au\/wp-content\/uploads\/2025\/07\/1*upiboNSChj1BIvycXiID7w.png\" width=\"32\" height=\"32\" loading=\"lazy\" data-testid=\"authorPhoto\"\/><\/a>Press enter or click to view image in full size<img alt=\"\" class=\"bi ma ng c\" width=\"700\" height=\"685\" loading=\"eager\" role=\"presentation\"\/>Press enter or click to view image in full size<img alt=\"\" class=\"bi ma ng c\" width=\"700\" height=\"445\" loading=\"lazy\" role=\"presentation\"\/>Press enter or click to view image in full size<img alt=\"\" class=\"bi ma ng c\" width=\"700\" height=\"361\" loading=\"lazy\" role=\"presentation\"\/>Stacked RGB images of 3I\/ATLAS at 4.10 UT on November 8, 2025. The sunward direction (ooposite to the arrow in the top panel) is pointing towards the bottom left corner. (Credit: <a class=\"ah ns\" href=\"https:\/\/www.facebook.com\/groups\/227002358661288\/posts\/1612476750113835\/\" rel=\"noopener ugc nofollow\" target=\"_blank\">M. J\u00e4ger, G. Rhemann, E. Prosperi<\/a>)<\/p>\n<p id=\"33d1\" class=\"pw-post-body-paragraph nt nu hl nv b nw nx ny nz oa ob oc od oe of og oh oi oj ok ol om on oo op oq he bl\">This morning, at 4.10 Universal Time (UT) on November 8, 2025, the interstellar object <a class=\"ah ns\" href=\"https:\/\/en.wikipedia.org\/wiki\/3I\/ATLAS\" rel=\"noopener ugc nofollow\" target=\"_blank\">3I\/ATLAS<\/a> showed a complex jet structure. M. J\u00e4ger, G. Rhemann and E. Prosperi observed 3I\/ATLAS at 29 degrees separation from the Sun in the sky, as reported <a class=\"ah ns\" href=\"https:\/\/www.facebook.com\/groups\/227002358661288\/posts\/1612476750113835\/\" rel=\"noopener ugc nofollow\" target=\"_blank\">here<\/a>.<\/p>\n<p id=\"1809\" class=\"pw-post-body-paragraph nt nu hl nv b nw nx ny nz oa ob oc od oe of og oh oi oj ok ol om on oo op oq he bl\">The stacked images, constituting 24 exposures in the green filter\u2014 each lasting 35 seconds , 2 exposures in a red filter and 2 exposures in a blue filter, show a large coma extended out to half a million kilometers (5 arcminutes). The images show at least 7 distinct jets, some of which are anti-tails in the sunward direction.<\/p>\n<p id=\"b6af\" class=\"pw-post-body-paragraph nt nu hl nv b nw nx ny nz oa ob oc od oe of og oh oi oj ok ol om on oo op oq he bl\">At the time of observations, the comet was 7\u201310 degrees above the horizon. Eventually, twilight interfered with the observations, which took place under a bright moonlight.<\/p>\n<p id=\"e10d\" class=\"pw-post-body-paragraph nt nu hl nv b nw nx ny nz oa ob oc od oe of og oh oi oj ok ol om on oo op oq he bl\">A picture is worth a thousand words.<\/p>\n<p id=\"e816\" class=\"pw-post-body-paragraph nt nu hl nv b nw nx ny nz oa ob oc od oe of og oh oi oj ok ol om on oo op oq he bl\">ABOUT THE AUTHOR<\/p>\n<p>Press enter or click to view image in full size<img alt=\"\" class=\"bi ma ng c\" width=\"700\" height=\"1060\" loading=\"lazy\" role=\"presentation\"\/>(Image Credit: Chris Michel, National Academy of Sciences, 2023)<\/p>\n<p id=\"0b5b\" class=\"pw-post-body-paragraph nt nu hl nv b nw nx ny nz oa ob oc od oe of og oh oi oj ok ol om on oo op oq he bl\">Avi Loeb is the head of the Galileo Project, founding director of Harvard University\u2019s \u2014 Black Hole Initiative, director of the Institute for Theory and Computation at the Harvard-Smithsonian Center for Astrophysics, and the former chair of the astronomy department at Harvard University (2011\u20132020). He is a former member of the President\u2019s Council of Advisors on Science and Technology and a former chair of the Board on Physics and Astronomy of the National Academies. He is the bestselling author of \u201c<a class=\"ah ns\" href=\"https:\/\/www.harpercollins.com\/products\/extraterrestrial-avi-loeb?variant=39935330418722\" rel=\"noopener ugc nofollow\" target=\"_blank\">Extraterrestrial:<\/a> <a class=\"ah ns\" href=\"https:\/\/www.harpercollins.com\/products\/extraterrestrial-avi-loeb?variant=39935330418722\" rel=\"noopener ugc nofollow\" target=\"_blank\">The First Sign of Intelligent Life Beyond Earth<\/a>\u201d and a co-author of the textbook \u201c<a class=\"ah ns\" href=\"https:\/\/www.hup.harvard.edu\/catalog.php?isbn=9780674987579\" rel=\"noopener ugc nofollow\" target=\"_blank\">Life in the Cosmos<\/a>\u201d, both published in 2021. The paperback edition of his new book, titled \u201c<a class=\"ah ns\" href=\"https:\/\/www.harpercollins.com\/products\/interstellar-avi-loeb-1?variant=40982888415266\" rel=\"noopener ugc nofollow\" target=\"_blank\">Interstellar<\/a>\u201d, was published in August 2024.<\/p>\n","protected":false},"excerpt":{"rendered":"Press enter or click to view image in full sizePress enter or click to view image in full&hellip;\n","protected":false},"author":2,"featured_media":271140,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[64,63,128,285],"class_list":{"0":"post-271139","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-space","8":"tag-au","9":"tag-australia","10":"tag-science","11":"tag-space"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/271139","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/comments?post=271139"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/271139\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media\/271140"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media?parent=271139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/categories?post=271139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/tags?post=271139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}