{"id":661430,"date":"2020-07-20T14:34:34","date_gmt":"2020-07-20T18:34:34","guid":{"rendered":"https:\/\/spaceweekly.com\/?p=661430"},"modified":"2020-07-20T14:34:34","modified_gmt":"2020-07-20T18:34:34","slug":"could-mini-neptunes-be-irradiated-ocean-planets","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=661430","title":{"rendered":"Could mini-Neptunes be irradiated ocean planets?"},"content":{"rendered":"<p>Many exoplanets known today are &#8216;super-Earths,&#8217; with a radius 1.3 times that of Earth, and &#8216;mini-Neptunes,&#8217; with 2.4 Earth radii. Mini-Neptunes, which are less dense, were long thought to be gas planets, made up of hydrogen and helium. Now, scientists at the Laboratoire d&#8217;Astrophysique de Marseille (CNRS\/Aix-Marseille Universit\u00e9\/Cnes) have examined a new possibility, namely that the low density of mini-Neptunes could be explained simply by the presence of a thick layer of water that experiences an intense greenhouse effect caused by the irradiation from their host star.&#013;<br \/>\n&#013;<br \/>\n&#013;<br \/>\n Click here for original story, <a href=\"https:\/\/phys.org\/news\/2020-07-mini-neptunes-irradiated-ocean-planets.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Could mini-Neptunes be irradiated ocean planets?<\/a>&#013;<br \/>\n&#013;<br \/>\n&#013;<br \/>\nSource: Phys.org&#013;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many exoplanets known today are &#8216;super-Earths,&#8217; with a radius 1.3 times that of Earth, and &#8216;mini-Neptunes,&#8217; with 2.4 Earth radii. Mini-Neptunes, which are less dense, were long thought to be&hellip; <\/p>\n","protected":false},"author":1,"featured_media":615444,"comment_status":"false","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"class_list":["post-661430","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-phys-org"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/661430","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=661430"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/661430\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=661430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=661430"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=661430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}