{"id":245661,"date":"2026-10-19T22:55:04","date_gmt":"2026-10-20T03:55:04","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/10\/planetary-twins-uranus-and-neptune-may-have-different-origin-stories"},"modified":"2026-10-19T22:55:04","modified_gmt":"2026-10-20T03:55:04","slug":"planetary-twins-uranus-and-neptune-may-have-different-origin-stories","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/10\/planetary-twins-uranus-and-neptune-may-have-different-origin-stories","title":{"rendered":"Planetary \u2018twins\u2019 Uranus and Neptune may have different origin stories"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/planetary-twins-uranus-and-neptune-may-have-different-origin-stories.jpg\"><\/a><\/p>\n<p>Uranus and Neptune are the least explored planets in the solar system. Only the <a href=\"https:\/\/phys.org\/news\/2022-08-years-billion-year-legacy-voyager-interstellar.html?utm_source=embeddings&utm_medium=related&utm_campaign=internal\" rel=\"related\">Voyager 2<\/a> spacecraft has flown by them, in 1986 and 1989, respectively. Yet understanding their origin is an important challenge for planetary science: Planets of comparable size account for more than half of the roughly 6,000 exoplanets discovered to date.<\/p>\n<p>To trace the history of these two worlds, scientists seek to determine the composition of their deep layers, which are inaccessible to direct observation due in part to the many successive cloud layers. They must therefore identify tracers that can indirectly reveal their composition. Carbon monoxide (CO) is one such tracer. Produced or present in the deep layers of the atmosphere, it can be transported through multiple cloud layers to altitudes accessible to observation. Its concentration thus provides a window into regions located far below the visible clouds.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uranus and Neptune are the least explored planets in the solar system. Only the Voyager 2 spacecraft has flown by them, in 1986 and 1989, respectively. Yet understanding their origin is an important challenge for planetary science: Planets of comparable size account for more than half of the roughly 6,000 exoplanets discovered to date. To [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1514],"tags":[],"class_list":["post-245661","post","type-post","status-publish","format-standard","hentry","category-space-travel"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/245661","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=245661"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/245661\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=245661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=245661"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=245661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}