{"id":240463,"date":"2026-07-08T07:03:45","date_gmt":"2026-07-08T12:03:45","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/07\/super-puff-planets-lighter-than-candy-floss-discovered-by-international-team"},"modified":"2026-07-08T07:03:45","modified_gmt":"2026-07-08T12:03:45","slug":"super-puff-planets-lighter-than-candy-floss-discovered-by-international-team","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/07\/super-puff-planets-lighter-than-candy-floss-discovered-by-international-team","title":{"rendered":"\u2018Super-puff\u2019 planets lighter than candy floss discovered by international team"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/super-puff-planets-lighter-than-candy-floss-discovered-by-international-team.jpg\"><\/a><\/p>\n<p>An international collaboration has discovered two of the lowest-density giant planets ever detected: rare \u201csuper-puff\u201d planets with densities lower than candy floss. The study\u2014led by the University of Oxford, in collaboration with Universit\u00e9 C\u00f4te d\u2019Azur\/Observatoire de la C\u00f4te d\u2019Azur and the University of Birmingham\u2014has been published in Monthly Notices of the Royal Astronomical Society.<\/p>\n<p>The two planets, named TOI-791 b and TOI-791 c, orbit an F7-type dwarf star located around 1,110 light-years from Earth in the southern constellation Volans. Although both planets are roughly the size of Jupiter, they are extraordinarily diffuse: TOI-791 b has a density of just 0.038 grams per cubic centimeter, while TOI-791 c has a density of 0.047 grams per cubic centimeter.<\/p>\n<p>By comparison, Jupiter\u2019s average density is 1.33 grams per cubic centimeter, around 28 to 35 times greater.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An international collaboration has discovered two of the lowest-density giant planets ever detected: rare \u201csuper-puff\u201d planets with densities lower than candy floss. The study\u2014led by the University of Oxford, in collaboration with Universit\u00e9 C\u00f4te d\u2019Azur\/Observatoire de la C\u00f4te d\u2019Azur and the University of Birmingham\u2014has been published in Monthly Notices of the Royal Astronomical Society. The [\u2026]<\/p>\n","protected":false},"author":707,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-240463","post","type-post","status-publish","format-standard","hentry","category-space"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/240463","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\/707"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=240463"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/240463\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=240463"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=240463"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=240463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}