{"id":38995,"date":"2025-08-20T23:26:15","date_gmt":"2025-08-20T21:26:15","guid":{"rendered":"https:\/\/karmaka.de\/?p=38995"},"modified":"2025-08-20T23:26:16","modified_gmt":"2025-08-20T21:26:16","slug":"core-metamorphism-controls-the-dynamic-habitability-of-mid-sized-ocean-worlds-the-case-of-ceres","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=38995","title":{"rendered":"Core metamorphism controls the dynamic habitability of mid-sized ocean worlds\u2014The case of Ceres<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>Samuel W. Courville, Julie C. Castillo-Rogez, Mohit Melwani Daswani, Jordyn Robare, and Joseph G. O\u2019Rourke<\/p>\n\n\n\n<p>Science Advances<br>20 Aug 2025<br>Vol 11, Issue 34<\/p>\n\n\n\n<p><a href=\"https:\/\/www.science.org\/doi\/10.1126\/sciadv.adt3283\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br><a href=\"https:\/\/www.science.org\/doi\/epdf\/10.1126\/sciadv.adt3283\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;Ceres\u2019s surface mineralogy and density structure indicate an aqueous past. Observations from the Dawn mission revealed that Ceres likely hosted a global subsurface ocean in its early history, which was the site of pervasive aqueous alteration of accreted material. Subsurface environmental constraints inferred from Ceres\u2019s surface mineralogy, combined with Ceres\u2019s high abundance of carbon, suggest that the dwarf planet may have been habitable for microbial life. We present a coupled chemical and thermal evolution model tracking Ceres\u2019s interior aqueous environment through time. If the rocky interior reached \u2273550 K, then fluids released by rock metamorphism would have promoted conditions favorable for habitability by introducing redox disequilibrium into the ocean, a source of chemical energy for chemotrophs. We find that this period would have been between ~0.5 and 2 billion years after Ceres\u2019s formation. Since then, Ceres\u2019s ocean has likely become a cold, concentrated brine with fewer sources of energy, making it less likely to be habitable at present.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Samuel W. Courville, Julie C. Castillo-Rogez, Mohit Melwani Daswani, Jordyn Robare, and Joseph G. O\u2019Rourke Science Advances20 Aug 2025Vol 11, Issue 34 LINK (OPEN ACCESS)PDF (OPEN ACCESS) &#8220;Ceres\u2019s surface mineralogy and density structure indicate an&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[167,1700],"tags":[1842,1868,1503,1135],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/38995"}],"collection":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=38995"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/38995\/revisions"}],"predecessor-version":[{"id":38996,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/38995\/revisions\/38996"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=38995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=38995"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=38995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}