{"id":245531,"date":"2026-10-17T01:25:18","date_gmt":"2026-10-17T06:25:18","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/10\/webb-discovers-something-extraordinary-in-the-clouds-of-a-world-with-no-sun"},"modified":"2026-10-17T01:25:18","modified_gmt":"2026-10-17T06:25:18","slug":"webb-discovers-something-extraordinary-in-the-clouds-of-a-world-with-no-sun","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/10\/webb-discovers-something-extraordinary-in-the-clouds-of-a-world-with-no-sun","title":{"rendered":"Webb Discovers Something Extraordinary in the Clouds of a World With No Sun"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/webb-discovers-something-extraordinary-in-the-clouds-of-a-world-with-no-sun2.jpg\"><\/a><\/p>\n<p><strong>A world with no sunrise still has changing skies, and Webb has caught its water clouds thickening and thinning just 7.5 light-years away.<\/strong><\/p>\n<p>Astronomers have tracked weather on WISE 855, the coldest known brown dwarf, using the James Webb Space Telescope. A team led by Brittany Miles of the University of Arizona\u2019s Steward Observatory watched the Jupiter-sized object for 11 hours, recording a spectrum of its light every 15 minutes. Those observations allowed researchers to distinguish shifting water clouds from gases carried upward by heat deep inside the atmosphere.<\/p>\n<p>The findings, published in <em>The Astrophysical Journal<\/em>, provide the most detailed time-series view yet of this frigid neighbor. They also offer the first direct confirmation that water clouds on another world change thickness over time, a familiar feature of weather on Earth.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A world with no sunrise still has changing skies, and Webb has caught its water clouds thickening and thinning just 7.5 light-years away. Astronomers have tracked weather on WISE 855, the coldest known brown dwarf, using the James Webb Space Telescope. A team led by Brittany Miles of the University of Arizona\u2019s Steward Observatory watched [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-245531","post","type-post","status-publish","format-standard","hentry","category-space"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/245531","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=245531"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/245531\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=245531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=245531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=245531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}