{"id":480,"date":"2025-11-05T11:56:02","date_gmt":"2025-11-05T11:56:02","guid":{"rendered":"https:\/\/astronomynews.site\/?p=480"},"modified":"2025-11-05T11:56:02","modified_gmt":"2025-11-05T11:56:02","slug":"cosmic-cotton-candy-meet-toi-4507-b-the-ghostly-giant-that-shouldnt-exist","status":"publish","type":"post","link":"https:\/\/astronomynews.site\/?p=480","title":{"rendered":"Cosmic Cotton Candy: Meet TOI-4507 b, the Ghostly Giant That Shouldn\u2019t Exist"},"content":{"rendered":"<div class=\"02eb8743c28d6c1e6f2b405980996749\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script>\r\n  atOptions = {\r\n    'key' : 'c8310ef23effe95e5309c38cfaf056e0',\r\n    'format' : 'iframe',\r\n    'height' : 250,\r\n    'width' : 300,\r\n    'params' : {}\r\n  };\r\n<\/script>\r\n<script src=\"https:\/\/passivealexis.com\/c8310ef23effe95e5309c38cfaf056e0\/invoke.js\"><\/script>\n<\/div>\n<p>About 578 light-years away from Earth, astronomers recently uncovered a planet that\u2019s rewriting what we thought we knew about worlds beyond our solar system. Meet TOI\u20114507 b \u2014 a giant ball of gas that defies nearly every rule we\u2019ve developed for how planets form and evolve.<\/p>\n<p>&nbsp;<\/p>\n<p>First, let\u2019s talk numbers. TOI-4507 b orbits a star that\u2019s only about 700 million years old. In cosmic terms, that\u2019s a toddler. Yet around this young star it revolves in roughly 105 days, and despite being about the size of Jupiter, it has less than one-tenth of Jupiter\u2019s mass. In fact, its density is extremely low \u2014 it falls into a rare class called \u201csuper-puffs\u201d, planets that are huge in volume but startlingly light.<\/p>\n<p>&nbsp;<\/p>\n<p>Because its radius is so large and mass so small, TOI-4507 b\u2019s average density is under ~0.3 g\/cm\u00b3. To put that in perspective: that\u2019s lighter than many solids, comparable to a foam or fluffy substance \u2014 if you could somehow drop it into water, in theory it would float (though obviously it\u2019s too big and far away for that to happen).<\/p>\n<p>&nbsp;<\/p>\n<p>What makes this planet even more remarkable is its orbit. It lies on what scientists call a nearly polar orbit, meaning it swings around its star in a direction almost perpendicular to the star\u2019s equatorial plane. It\u2019s an unusual configuration and one that raises questions about how this system formed in the first place.<\/p>\n<p>&nbsp;<\/p>\n<p>Given its youth, huge size and tiny mass, astronomers are scratching their heads: how did this planet come to be? Some of the hypotheses include:<\/p>\n<p>&nbsp;<\/p>\n<p>It might have formed far from its star in a cool region where gas envelopes can balloon up, then migrated inward.<\/p>\n<p>&nbsp;<\/p>\n<p>It could be inflated because of internal or external heating, although in this case its distance from the star might make that less likely.<\/p>\n<p>&nbsp;<\/p>\n<p>Alternatively, what looks like a giant puffed-up planet might actually be a more normal planet cloaked by an enormous ring system making it appear bigger than it is. Some researchers consider this possibility.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Why does this matter? For one thing, TOI-4507 b is a valuable laboratory. Because its atmosphere is so inflated and the star is relatively young and bright, the planet is an excellent target for follow-up observations. Instruments like the James Webb Space Telescope (JWST) could probe its atmosphere, helping scientists understand how super-puffs form, how they survive so close to their stars, and whether they lose mass quickly.<\/p>\n<p>&nbsp;<\/p>\n<p>Secondly, it challenges the standard models. Usually, giant planets close to their stars experience strong stellar radiation that strips away gas and shrinks them over time. Yet here we have a very young system with a huge, light planet intact. That suggests our theories about planet formation \u2014 especially how gas envelopes are acquired, retained or lost \u2014 may need a rethink.<\/p>\n<p>&nbsp;<\/p>\n<p>In simpler words: TOI-4507 b is like a giant bubble that somehow formed and floated intact next to a young star when classic models say it should have collapsed, gotten stripped or never grown that big in the first place.<\/p>\n<p>&nbsp;<\/p>\n<p>As our search for worlds beyond Earth continues, discoveries like this remind us of the universe\u2019s ability to surprise. TOI-4507 b doesn\u2019t fit neatly into any category we have \u2014 and that\u2019s exactly what makes it exciting.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&#8212;<\/p>\n<p>&nbsp;<\/p>\n<p>Source:<\/p>\n<p>&nbsp;<\/p>\n<p>\u201cStrange \u2018puffy\u2019 alien world breaks every rule for how planets should behave\u201d \u2013 Space.com, Paul Sutter, 14 Oct 2025.<\/p>\n<p>&nbsp;<\/p>\n<p>\u201cA Cold and Super-Puffy Planet on a Polar Orbit\u201d \u2013 arXiv pre-print, Espinoza-Retamal et al., 30 Sept 2025.<\/p>\n<p>&nbsp;<\/p>\n<p>Exoplanet database entries for TOI-4507 b.<\/p>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>About 578 light-years away from Earth, astronomers recently uncovered a planet that\u2019s rewriting what we thought we knew about worlds beyond our solar system. Meet TOI\u20114507 b \u2014 a giant ball of gas that defies nearly every rule we\u2019ve developed for how planets form and evolve. &nbsp; First, let\u2019s talk numbers. TOI-4507 b orbits a\u2026 <span class=\"read-more\"><a href=\"https:\/\/astronomynews.site\/?p=480\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":481,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,5],"tags":[],"class_list":["post-480","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomy","category-space"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/astronomynews.site\/index.php?rest_route=\/wp\/v2\/posts\/480","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astronomynews.site\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/astronomynews.site\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/astronomynews.site\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/astronomynews.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=480"}],"version-history":[{"count":1,"href":"https:\/\/astronomynews.site\/index.php?rest_route=\/wp\/v2\/posts\/480\/revisions"}],"predecessor-version":[{"id":482,"href":"https:\/\/astronomynews.site\/index.php?rest_route=\/wp\/v2\/posts\/480\/revisions\/482"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astronomynews.site\/index.php?rest_route=\/wp\/v2\/media\/481"}],"wp:attachment":[{"href":"https:\/\/astronomynews.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astronomynews.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=480"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astronomynews.site\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}