{"id":29329,"date":"2024-03-09T14:31:33","date_gmt":"2024-03-09T14:31:33","guid":{"rendered":"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/astronomers-discover-exoplanet-with-a-boiling-ocean"},"modified":"2024-03-09T14:38:46","modified_gmt":"2024-03-09T14:38:46","slug":"astronomers-discover-exoplanet-with-a-boiling-ocean","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/astronomers-discover-exoplanet-with-a-boiling-ocean","title":{"rendered":"Astronomers Discover Exoplanet With a Boiling Ocean"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Sierra-Leone. <\/strong><\/span>The exoplanet, known as TOI-270 d, was described by NASA as a Neptune-like exoplanet with a mass that is a little over 4.5 Earths. This exoplanet, which was discovered in 2019, takes 11.4 days to complete one orbit around its star and is about 70 light years away.<\/p>\n<p>NASA\u2019s James Webb Space Telescope (JWST) has discovered a distant planet that could be entirely covered by water, according to a report published on Friday. The planet was discovered during a quest to identify habitable exoplanets, as Webb\u2019s advanced instruments allow it to conduct detailed analysis of exoplanet atmospheres that may present key, life-sustaining molecules.<\/p>\n<p>Through Webb\u2019s observations, it found water vapor and chemical signatures of methane and carbon dioxide in the atmosphere of the exoplanet. Based on these findings, astronomers believe this chemical mixture is consistent with a water world in which a boiling hot \u201cocean\u201d would cover the entire surface.<\/p>\n<p>\u201cThe ocean could be upwards of 100 degrees Celsius [212 degrees Fahrenheit] or more,\u201d said Professor of Astrophysics and Exoplanetary Science Nikku Madhusudhan of the Institute of Astronomy at the University of Cambridge, who led the analysis. He adds that an ocean this hot could still be liquid due to the high atmospheric pressure, but it isn\u2019t clear whether or not the planet would be habitable.<\/p>\n<p>The absence of ammonia is another reason as to why scientists believe his exoplanet may have an ocean on its surface, even though it should naturally occur in a hydrogen-rich atmosphere, based on chemical principles.<\/p>\n<p>Madhusudhan adds that TOI-270 d could be a Hycean planet, which is a particular type of exoplanet that contain hydrogen-rich atmospheres and support large liquid oceans. It was once thought that these Hycean planets could support life, though a recent study suggests that may not be the case, as these planets would suffer from a catastrophic runaway greenhouse effect and could limit their potential to host life.<\/p>\n<p>TOI-270 d is also tidally licked, which means one side faces its star\u2014which is a red dwarf\u2014and the other side is bathed in eternal darkness, creating an extreme temperature difference. The planet would also have an atmosphere with tens or hundreds of times the pressure at the Earth\u2019s surface<b>.<\/b><br \/>\n<b>\u201cThe ocean would be extremely hot on the day side. The night side could potentially host habitable conditions,\u201d said Madhusudhan. \u201cWe need to be extremely careful about how we communicate findings on this kind of object,\u201d he added. \u201cIt\u2019s easy for the public to jump on to the idea that we\u2019re finding life already.\u201d<\/b><\/p>\n<p>Astronomers also detected carbon disulphide, which has been linked to biological processes on Earth, though it can be produced in other ways.<\/p>\n<p>\u201cWe can\u2019t tie [carbon disulphide] to biological activity,\u201d said Madhusudhan. \u201cIn a hydrogen-rich atmosphere, it is relatively easy to make it. But if we\u2019re able to measure the unique molecule it\u2019s promising that we should be able to measure habitable planets in the future.<\/p>\n<p><strong>For More News And Analysis About <a href=\"https:\/\/www.africa-press.net\/sierra-leone\">Sierra-Leone<\/a> Follow <a href=\"https:\/\/www.africa-press.net\/\">Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Sierra-Leone. The exoplanet, known as TOI-270 d, was described by NASA as a Neptune-like exoplanet with a mass that is a little over 4.5 Earths. This exoplanet, which was discovered in 2019, takes 11.4 days to complete one orbit around its star and is about 70 light years away. NASA\u2019s James Webb Space [&hellip;]<\/p>\n","protected":false},"author":84,"featured_media":29328,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,9],"tags":[291,293,292],"class_list":["post-29329","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-miscellaneous","tag-africa-press","tag-africa-press-sierra-leone","tag-sierra-leone"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Astronomers Discover Exoplanet With a Boiling Ocean - Sierra Leone<\/title>\n<meta name=\"description\" content=\"The exoplanet, known as TOI-270 d, was described by NASA as a Neptune-like exoplanet with a mass that is a little over 4 ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/astronomers-discover-exoplanet-with-a-boiling-ocean\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Astronomers Discover Exoplanet With a Boiling Ocean\" \/>\n<meta property=\"og:description\" content=\"The exoplanet, known as TOI-270 d, was described by NASA as a Neptune-like exoplanet with a mass that is a little over 4 ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/astronomers-discover-exoplanet-with-a-boiling-ocean\" \/>\n<meta property=\"og:site_name\" content=\"Sierra Leone\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/AfricaPressTunisiaa\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-09T14:31:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-09T14:38:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/sierra-leone\/sites\/16\/2024\/03\/sm_1709982410.14499.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"720\" \/>\n\t<meta property=\"og:image:height\" content=\"444\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditoren\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditoren\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/astronomers-discover-exoplanet-with-a-boiling-ocean#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/astronomers-discover-exoplanet-with-a-boiling-ocean\"},\"author\":{\"name\":\"cfeditoren\",\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/#\/schema\/person\/068c7ab4e9634ae78ec5d54ec46598bb\"},\"headline\":\"Astronomers Discover Exoplanet With a Boiling Ocean\",\"datePublished\":\"2024-03-09T14:31:33+00:00\",\"dateModified\":\"2024-03-09T14:38:46+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/astronomers-discover-exoplanet-with-a-boiling-ocean\"},\"wordCount\":512,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/astronomers-discover-exoplanet-with-a-boiling-ocean#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/sierra-leone\/sites\/16\/2024\/03\/sm_1709982410.14499.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Sierra-Leone\",\"Sierra-Leone\"],\"articleSection\":[\"all news\",\"miscellaneous\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/astronomers-discover-exoplanet-with-a-boiling-ocean#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/astronomers-discover-exoplanet-with-a-boiling-ocean\",\"url\":\"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/astronomers-discover-exoplanet-with-a-boiling-ocean\",\"name\":\"Astronomers Discover Exoplanet With a Boiling Ocean - 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