{"id":400,"date":"2025-11-01T08:33:23","date_gmt":"2025-11-01T08:33:23","guid":{"rendered":"https:\/\/astronomynews.site\/?p=400"},"modified":"2025-11-01T08:33:23","modified_gmt":"2025-11-01T08:33:23","slug":"newly-discovered-exoplanet-toi%e2%80%911452-b-a-vast-ocean-world-orbiting-two-stars","status":"publish","type":"post","link":"https:\/\/astronomynews.site\/?p=400","title":{"rendered":"Newly Discovered Exoplanet TOI\u20111452 b: A Vast Ocean World Orbiting Two Stars"},"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>Scientists have identified a remarkable exoplanet, TOI-1452 b, that may be unlike anything we have in our solar system \u2014 a \u201cwater world\u201d completely submerged in an endless global ocean, orbiting two stars approximately 100 light-years away in the constellation Draco.<\/p>\n<p>&nbsp;<\/p>\n<p>Here\u2019s a closer look at what makes this discovery so exciting, and what it might tell us about the search for life beyond Earth.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&#8212;<\/p>\n<p>&nbsp;<\/p>\n<p>A Super-Earth in the habitable zone<\/p>\n<p>&nbsp;<\/p>\n<p>TOI-1452 b is classified as a \u201csuper-Earth\u201d \u2014 larger than our planet but smaller than Neptune. It has a radius about 1.67 times that of Earth and a mass approximately 4.8 times Earth\u2019s.<\/p>\n<p>It orbits its host star every 11.1 days, at a distance of about 0.061 AU (astronomical units) from its star.<\/p>\n<p>The host star is one of a binary pair of red dwarf (M-type) stars \u2014 TOI-1452 is part of a system where the two stars orbit each other at a distance of roughly 97 AU.<\/p>\n<p>&nbsp;<\/p>\n<p>Because the star is cool and dim compared to the Sun, the amount of radiation TOI-1452 b receives puts it into what\u2019s sometimes called a \u201ctemperate zone\u201d \u2014 meaning its surface conditions might allow for liquid water rather than being too hot or too cold.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&#8212;<\/p>\n<p>&nbsp;<\/p>\n<p>Why scientists believe it could be an ocean-covered planet<\/p>\n<p>&nbsp;<\/p>\n<p>What sets TOI-1452 b apart is the combination of its size, mass and density \u2014 suggesting it could be rich in water. Interior modelling indicates that water could make up as much as 20 \u2013 30 % of its mass. For comparison, Earth\u2019s oceans account for less than 1 % of its mass.<\/p>\n<p>The planet\u2019s inferred density (~5.6 g\/cm\u00b3) is lower than what you\u2019d expect from a purely rocky planet of that size \u2014 meaning lighter materials (like water or volatiles) must make up a significant portion.<\/p>\n<p>&nbsp;<\/p>\n<p>This leads to the hypothesis that TOI-1452 b could be entirely shrouded by a deep global ocean \u2014 no continents, no exposed rock, just water stretching for thousands of miles. Some scientists liken it to the icy ocean moons of Jupiter and Saturn (such as Ganymede or Titan) but scaled up.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&#8212;<\/p>\n<p>&nbsp;<\/p>\n<p>Why this matters for the search for life<\/p>\n<p>&nbsp;<\/p>\n<p>A planet covered in water opens intriguing possibilities for life \u2014 although it also raises new challenges. On Earth, water is fundamental for life, and having a large ocean increases the volume of potentially habitable space.<\/p>\n<p>Because TOI-1452 b is relatively nearby (in cosmic terms) and orbits a star that is favourable for follow-up observations, it becomes a prime candidate for atmospheric study with instruments such as the James Webb Space Telescope.<\/p>\n<p>&nbsp;<\/p>\n<p>If we can detect signs of an atmosphere, and ideally water vapour or other biosignature gases, we might get hints about whether this ocean world could support life or habitable conditions.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&#8212;<\/p>\n<p>&nbsp;<\/p>\n<p>Caution: It\u2019s promising \u2014 but not confirmed<\/p>\n<p>&nbsp;<\/p>\n<p>While the \u201cwater world\u201d description is compelling, scientists emphasise that many uncertainties remain:<\/p>\n<p>&nbsp;<\/p>\n<p>The exact composition and structure of TOI-1452 b are still modelled rather than directly observed.<\/p>\n<p>&nbsp;<\/p>\n<p>It\u2019s possible the planet could instead be a huge rocky world with a thick hydrogen\/helium atmosphere rather than a global ocean.<\/p>\n<p>&nbsp;<\/p>\n<p>Being in the \u201ctemperate zone\u201d doesn\u2019t guarantee a benign climate \u2014 factors like atmospheric thickness, internal heat, and star-planet interactions all matter.<\/p>\n<p>&nbsp;<\/p>\n<p>Future observations are required to nail down the atmosphere, surface conditions, and whether water is indeed present in significant quantities.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&#8212;<\/p>\n<p>&nbsp;<\/p>\n<p>In summary<\/p>\n<p>&nbsp;<\/p>\n<p>The discovery of TOI-1452 b gives us a rare glimpse of a planet that might be utterly different from Earth \u2014 one wrapped entirely by water, orbiting a red dwarf star in a binary system just 100 light-years away. If confirmed, it will expand our understanding of the kinds of worlds that exist in the galaxy, and reshape our ideas about where life might arise.<\/p>\n<p>&nbsp;<\/p>\n<p>For now, it stands as one of the most exciting \u201cocean planet\u201d candidates ever found \u2014 a real case of \u201cEarth but drowned beneath the waves.\u201d<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&#8212;<\/p>\n<p>&nbsp;<\/p>\n<p>Sources:<\/p>\n<p>&nbsp;<\/p>\n<p>NASA Science: TOI-1452 b exoplanet catalogue.<\/p>\n<p>&nbsp;<\/p>\n<p>Article \u201cWe just found a super-Earth that could be an ocean-covered water world\u201d.<\/p>\n<p>&nbsp;<\/p>\n<p>\u201cExoplanet water-world super-Earth found in nearby binary system\u201d.<\/p>\n<p>&nbsp;<\/p>\n<p>\u201cA habitable-zone ocean planet has been discovered orbiting a red dwarf in a binary star system\u201d.<\/p>\n<p>&nbsp;<\/p>\n<p>\u201cPotential interior structures and habitability of super-Earth exoplanets \u2026 TOI-1452 b\u201d.<\/p>\n<p>&nbsp;<\/p>\n<p>Wikipedia: TOI-1452 b summary.<\/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>Scientists have identified a remarkable exoplanet, TOI-1452 b, that may be unlike anything we have in our solar system \u2014 a \u201cwater world\u201d completely submerged in an endless global ocean, orbiting two stars approximately 100 light-years away in the constellation Draco. &nbsp; Here\u2019s a closer look at what makes this discovery so exciting, and what\u2026 <span class=\"read-more\"><a href=\"https:\/\/astronomynews.site\/?p=400\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":401,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,5],"tags":[],"class_list":["post-400","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\/400","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=400"}],"version-history":[{"count":1,"href":"https:\/\/astronomynews.site\/index.php?rest_route=\/wp\/v2\/posts\/400\/revisions"}],"predecessor-version":[{"id":402,"href":"https:\/\/astronomynews.site\/index.php?rest_route=\/wp\/v2\/posts\/400\/revisions\/402"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astronomynews.site\/index.php?rest_route=\/wp\/v2\/media\/401"}],"wp:attachment":[{"href":"https:\/\/astronomynews.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astronomynews.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astronomynews.site\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}