{"id":29957,"date":"2025-06-04T15:49:40","date_gmt":"2025-06-04T15:49:40","guid":{"rendered":"https:\/\/site.itshrt.com\/worldnews\/massive-planet-discovered-orbiting-tiny-star-leaving-scientists-stumped\/"},"modified":"2025-06-04T15:49:40","modified_gmt":"2025-06-04T15:49:40","slug":"massive-planet-discovered-orbiting-tiny-star-leaving-scientists-stumped","status":"publish","type":"post","link":"https:\/\/site.itshrt.com\/worldnews\/massive-planet-discovered-orbiting-tiny-star-leaving-scientists-stumped\/","title":{"rendered":"Massive planet discovered orbiting tiny star, leaving scientists stumped"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6606220950177433\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- ItShrt World News -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6606220950177433\"\r\n     data-ad-slot=\"1882483372\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\r\n<br \/>\n<\/p>\n<div id=\"\">\n<p>Astronomers announced Wednesday they have discovered a massive planet orbiting a tiny star, a bizarre pairing that has stumped scientists.<\/p>\n<p>Most of the stars across the Milky Way are small red dwarfs like TOI-6894, which has only 20% the mass of our sun.<\/p>\n<p>It had not been thought possible that such puny, weak stars could provide the conditions needed to form and host huge planets.<\/p>\n<p>But an international team of astronomers have detected the unmistakable signature of a gas giant planet orbiting the undersized TOI-6894, <a href=\"https:\/\/www.nature.com\/articles\/s41550-025-02552-4\" target=\"_blank\" rel=\"nofollow noopener\">according to a study<\/a> in the journal Nature Astronomy. This makes the star the smallest star yet known to host a gas giant.<\/p>\n<p>The planet has a slightly larger radius than Saturn, but only half its mass. It orbits its star in a little over three days.<\/p>\n<figure class=\"embed embed--type-image is-image embed--float-none embed--size-medium\">\n<p>      <span class=\"img embed__content\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets1.cbsnewsstatic.com\/hub\/i\/r\/2025\/06\/04\/5343bf92-4cc4-4b07-aee3-c73db36ea743\/thumbnail\/620x551g2\/6193ece96a57edc7dc00240ed81ca310\/low-res-exoplanettoi-6894b.jpg?v=bf13c71e7181bf2db128edf777c4aecf#\" alt=\"low-res-exoplanettoi-6894b.jpg \" height=\"551\" width=\"620\" class=\" lazyload\" srcset=\"https:\/\/assets1.cbsnewsstatic.com\/hub\/i\/r\/2025\/06\/04\/5343bf92-4cc4-4b07-aee3-c73db36ea743\/thumbnail\/620x551g2\/6193ece96a57edc7dc00240ed81ca310\/low-res-exoplanettoi-6894b.jpg?v=bf13c71e7181bf2db128edf777c4aecf 1x, https:\/\/assets3.cbsnewsstatic.com\/hub\/i\/r\/2025\/06\/04\/5343bf92-4cc4-4b07-aee3-c73db36ea743\/thumbnail\/1240x1102g2\/bf9fa69ec2cf8aafeafff2b88fd84e4e\/low-res-exoplanettoi-6894b.jpg?v=bf13c71e7181bf2db128edf777c4aecf 2x\" loading=\"lazy\"\/><\/span><figcaption class=\"embed__caption-container\">\n<p>                  <span class=\"embed__caption\">Artist&#8217;s impression of the newly discovered giant planet &#8211; TOI-6894 b orbiting around a 0.2 solar mass host star.\u00a0<\/span><\/p>\n<p>                  <span class=\"embed__credit\"><\/p>\n<p>                University of Warwick\/Mark Garlick<\/p>\n<p>                          <\/span><br \/>\n              <\/figcaption><\/figure>\n<p>The astronomers discovered the planet when searching through more than 91,000 low-mass red dwarfs observed by NASA&#8217;s <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/spacex-falcon-9-launch-nasa-tess-satellite-expands-search-for-exoplanets-live-stream-today-2018-04-18\/\" data-invalid-url-rewritten-http=\"\">TESS space telescope<\/a><\/span>. Its existence was then confirmed by ground-based telescopes, including Chile&#8217;s <a href=\"https:\/\/www.eso.org\/public\/teles-instr\/paranal-observatory\/vlt\/\" target=\"_blank\" rel=\"nofollow noopener\">Very Large Telescope<\/a>.<\/p>\n<p>&#8220;The fact that this star hosts a giant planet has big implications for the total number of giant planets we estimate exist in our galaxy,&#8221; study co-author Daniel Bayliss of the UK&#8217;s Warwick University <a href=\"https:\/\/www.eurekalert.org\/news-releases\/1085419?\" target=\"_blank\" rel=\"nofollow noopener\">said in a statement<\/a>.<\/p>\n<p>Another co-author, Vincent Van Eylen, of University College London, said it was an &#8220;intriguing discovery.&#8221;<\/p>\n<p>&#8220;We don&#8217;t really understand how a star with so little mass can form such a massive planet!&#8221; he said. &#8220;This is one of the goals of the search for more exoplanets. By finding planetary systems different from our solar system, we can test our models and better understand how our own solar system formed.&#8221;<\/p>\n<h2>Planet is unusually cold<\/h2>\n<p>The most prominent theory for how planets form is called core accretion.<\/p>\n<p>The process begins when a ring of gas and dust \u2014 called a protoplanetary disc \u2014 which surrounds a newly formed star builds up into a planetary core. This core attracts more gas that forms an atmosphere, eventually snowballing into a gas giant.<\/p>\n<p>Under this theory, it is difficult for low-mass stars to host giant planets because there is not enough gas and dust to begin building a core in the first place.<\/p>\n<p>A rival theory proposes that these planets instead form when their protoplanetary disc becomes gravitationally unstable and breaks up, with the collapsing gas and dust forming a planet.<\/p>\n<p>However neither theory seems to explain the existence of the newly discovered planet, TOI-6894b, the researchers said.<\/p>\n<p>The planet also interests scientists because it is strangely cold.<\/p>\n<p>Most of the gas giants discovered outside our solar system so far have been what are known as <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/giant-alien-planet-spiraling-to-its-fiery-doom\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">&#8220;hot Jupiters,&#8221;<\/a><\/span> where temperatures soar well over 1,000 degrees Celsius. But the newly discovered planet appears to be under 150C, the researchers said.<\/p>\n<p>&#8220;Temperatures are low enough that atmospheric observations could even show us ammonia, which would be the first time it is found in an exoplanet atmosphere,&#8221; said study co-author Amaury Triaud of Birmingham University.<\/p>\n<p>The <a href=\"https:\/\/www.cbsnews.com\/tag\/james-webb-space-telescope\/\" rel=\"nofollow\" data-invalid-url-rewritten-http=\"\">James Webb space telescope<\/a> is scheduled to turn its powerful gaze toward the planet in the next year, which could help uncover some more mysteries of this strange planet.<\/p>\n<h2>Recent cosmic discoveries<\/h2>\n<p>The spotting of the giant planet orbiting the undersized star marks the latest in a string of recent celestial discoveries.<\/p>\n<p>Last month, a U.S.-based trio hunting the elusive &#8220;Planet Nine&#8221; said they instead stumbled on what appears to be a <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/planet-nine-search-twist-new-dwarf-planet-astronomers\/\" data-invalid-url-rewritten-http=\"\">new dwarf planet<\/a><\/span> in the solar system&#8217;s outer reaches. Named 2017 OF201, the new object is roughly 430 miles across, according to a preprint study, making it three times smaller than Pluto.<\/p>\n<p>Also in May, an international team reported that a <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/celestial-object-x-rays-radio-waves-milky-way-galaxy\/\" data-invalid-url-rewritten-http=\"\">newly found celestial object<\/a><\/span> \u2014 perhaps a star, pair of stars or something else entirely \u2014 is emitting X-rays around the same time it&#8217;s shooting out radio waves.<\/p>\n<p>Meanwhile, scientists announced recently that a new planetarium show about the Milky Way helped them <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/fluke-discovery-planetarium-oort-cloud-american-museum-natural-history\/\" data-invalid-url-rewritten-http=\"\">unlock one of the solar system&#8217;s many secrets<\/a><\/span>. Experts at the American Museum of Natural History in New York were fine-tuning a scene about the Oort Cloud that&#8217;s far beyond Pluto. Scientists have never glimpsed this region, but when museum experts projected their scene onto the planetarium dome, created using simulation data, they saw a spiral shape. <\/p>\n<p>Scientists had long thought the Oort Cloud was shaped like a sphere or flattened shell, warped by the push and pull of other planets and the Milky Way itself. The planetarium show hinted that a more complex shape could lie inside.<\/p>\n<figure class=\"embed embed--type-image is-image embed--float-none embed--size-medium\">\n<p>      <span class=\"img embed__content\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets3.cbsnewsstatic.com\/hub\/i\/r\/2025\/06\/04\/d5308b24-2ba8-4626-8106-41270a8e6ea0\/thumbnail\/620x349\/2c6eea145746747f7968944be436d5b1\/ap25153575361381.jpg?v=bf13c71e7181bf2db128edf777c4aecf#\" alt=\"Planetarium Discovery \" height=\"349\" width=\"620\" class=\" lazyload\" srcset=\"https:\/\/assets3.cbsnewsstatic.com\/hub\/i\/r\/2025\/06\/04\/d5308b24-2ba8-4626-8106-41270a8e6ea0\/thumbnail\/620x349\/2c6eea145746747f7968944be436d5b1\/ap25153575361381.jpg?v=bf13c71e7181bf2db128edf777c4aecf 1x, https:\/\/assets2.cbsnewsstatic.com\/hub\/i\/r\/2025\/06\/04\/d5308b24-2ba8-4626-8106-41270a8e6ea0\/thumbnail\/1240x698\/61ccda193813ae8b2cdfc67d6c45e4f2\/ap25153575361381.jpg?v=bf13c71e7181bf2db128edf777c4aecf 2x\" loading=\"lazy\"\/><\/span><figcaption class=\"embed__caption-container\">\n<p>                  <span class=\"embed__caption\">This image provided by the American Museum of Natural History shows a new planetarium show showing a backwards S-shaped spiral in what&#8217;s known as the Oort Cloud far beyond Pluto.\u00a0<\/span><\/p>\n<p>                  <span class=\"embed__credit\"><\/p>\n<p>                AP<\/p>\n<p>                          <\/span><br \/>\n              <\/figcaption><\/figure>\n<p class=\"content__meta--contributors\">\n<p>                      <span class=\"byline__author__text\">The Associated  Press<\/span><\/p>\n<p>        contributed to this report.\n    <\/p>\n<p>    <!-- data-recirc-source=\"chartbeat\" --><\/p>\n<aside class=\"component list recirculation component--type-recirculation component--type-recirculation-collection\">\n<\/aside>\n<p>    <!-- tags --><\/p><\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6606220950177433\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- ItShrt World News -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6606220950177433\"\r\n     data-ad-slot=\"1882483372\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/www.cbsnews.com\/news\/massive-planet-discovered-orbiting-tiny-star-toi-6894\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Astronomers announced Wednesday they have discovered a massive planet orbiting a tiny star, a bizarre pairing that has stumped scientists.<\/p>\n","protected":false},"author":1,"featured_media":29958,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[832],"class_list":["post-29957","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-space","tag-space"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Massive planet discovered orbiting tiny star, leaving scientists stumped - World News<\/title>\n<meta name=\"description\" content=\"It had not been thought possible that such tiny, weak stars could provide the conditions needed to form and host huge planets.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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