{"id":132652,"date":"2024-12-03T00:53:47","date_gmt":"2024-12-02T17:53:47","guid":{"rendered":"https:\/\/hotvideos24.online\/?p=132652"},"modified":"2024-12-03T00:53:47","modified_gmt":"2024-12-02T17:53:47","slug":"atmospheric-analysis-shows-venus-never-had-earth-like-life-scientists-say-venus","status":"publish","type":"post","link":"https:\/\/hotvideos24.online\/?p=132652","title":{"rendered":"Atmospheric analysis shows Venus never had Earth-like life, scientists say | Venus"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<\/p>\n<div>\n<p class=\"dcr-1eu361v\">With a surface hot enough to melt lead and with clouds of sulphuric acid above it, it is a planet often called Earth\u2019s \u201cevil twin\u201d \u2013 similar in size, yet worlds apart.<\/p>\n<p class=\"dcr-1eu361v\">Some scientists have long believed it was once much more hospitable, home to cooler temperatures and oceans of liquid water. But now researchers have dealt a blow to the idea that <a href=\"https:\/\/www.theguardian.com\/science\/venus\" data-link-name=\"in body link\" data-component=\"auto-linked-tag\">Venus<\/a> ever hosted life as we know it.<\/p>\n<p class=\"dcr-1eu361v\">Scientists say an analysis of the planet\u2019s atmosphere has revealed the interior of Venus is dry, suggesting it has never had the oceans of liquid water traditionally thought necessary for life to begin.<\/p>\n<p class=\"dcr-1eu361v\">\u201cThis doesn\u2019t completely rule out any life. It rules out Earth-like life,\u201d said Tereza Constantinou, first author of the research from the University of Cambridge.<\/p>\n<p class=\"dcr-1eu361v\">The question of whether Venus has ever been habitable \u2013 <a href=\"https:\/\/www.theguardian.com\/science\/article\/2024\/jul\/17\/signs-of-two-gases-phosphine-ammonia-in-clouds-of-venus-life\" data-link-name=\"in body link\">and might yet host life in its acidic clouds<\/a> \u2013 has long been a hot topic among scientists. Some believe the planet was once much more like Earth but then underwent a runaway greenhouse effect. Others believe Venus has always been inhospitable.<\/p>\n<p class=\"dcr-1eu361v\">Constantinou noted that early in the formation of Venus, the planet was covered in a vast sea of magma. If this cooled quickly, water would have condensed and formed water oceans. However, this process would also have trapped water in the magma as it crystallised, meaning the interior of the planet would be water-rich. As a result, water would be ejected when volcanoes erupt.<\/p>\n<p class=\"dcr-1eu361v\">\u201cIf you look at any photos of volcanism on Earth, you see kind of these large billowing clouds coming out. Most of that is water,\u201d she said.<\/p>\n<p class=\"dcr-1eu361v\">But if the magma cooled slowly, water would have ended up as steam in the atmosphere. Crucially, in this scenario, water would not be trapped inside the interior of the planet.<\/p>\n<p class=\"dcr-1eu361v\"><a href=\"https:\/\/dx.doi.org\/10.1038\/s41550-024-02414-5\" data-link-name=\"in body link\">Writing in the journal Nature Astronomy,<\/a> Constantinou and colleagues report how they studied the chemistry of the planet\u2019s atmosphere to shed light on the water content of its interior.<\/p>\n<figure id=\"20824e40-2334-4f17-9d67-fee1bf0f50cf\" data-spacefinder-role=\"richLink\" data-spacefinder-type=\"model.dotcomrendering.pageElements.RichLinkBlockElement\" class=\" dcr-1your1i\"><gu-island name=\"RichLinkComponent\" priority=\"feature\" deferuntil=\"idle\" props=\"{&quot;richLinkIndex&quot;:9,&quot;element&quot;:{&quot;_type&quot;:&quot;model.dotcomrendering.pageElements.RichLinkBlockElement&quot;,&quot;prefix&quot;:&quot;Related: &quot;,&quot;text&quot;:&quot;New map catalogues more than 85,000 volcanoes on Venus&quot;,&quot;elementId&quot;:&quot;20824e40-2334-4f17-9d67-fee1bf0f50cf&quot;,&quot;role&quot;:&quot;richLink&quot;,&quot;url&quot;:&quot;https:\/\/www.theguardian.com\/science\/2023\/may\/24\/new-map-catalogues-volcanoes-venus&quot;},&quot;ajaxUrl&quot;:&quot;https:\/\/api.nextgen.guardianapps.co.uk&quot;,&quot;format&quot;:{&quot;design&quot;:0,&quot;display&quot;:0,&quot;theme&quot;:0}}\"\/><\/figure>\n<p class=\"dcr-1eu361v\">The team said the unchanging nature of Venus\u2019s atmosphere meant the rate at which substances were lost must equal the rate at which they were replaced, with the latter driven by volcanic activity.<\/p>\n<p class=\"dcr-1eu361v\">However, when the team analysed the ratios of substances being replenished in the Venusian atmosphere, they found very little water was being added; in other words, volcanic eruptions were \u201cdry\u201d.<\/p>\n<p class=\"dcr-1eu361v\">\u201cThe scarcity of water in volcanic emissions reflects an equally dry Venusian interior,\u201d said Constantinou.<\/p>\n<p class=\"dcr-1eu361v\">The team said the findings were not consistent with Venus having had surface oceans of water in its past, and hence a climate traditionally considered habitable.<\/p>\n<p class=\"dcr-1eu361v\">The team\u2019s conclusion could soon be tested: later this decade, Nasa is due to launch the <a href=\"https:\/\/ssed.gsfc.nasa.gov\/davinci\/mission\" data-link-name=\"in body link\">DaVinci mission<\/a> to carry out flybys of Venus and drop a probe to its surface.<\/p>\n<p class=\"dcr-1eu361v\">Constantinou said resolving the question could help astronomers narrow down their search for habitable planets beyond our solar system. \u201c[Earth and Venus] provide this natural laboratory really close to us for studying how habitability, or the lack of it, evolves,\u201d she said.<\/p>\n<\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<br \/><div data-type=\"_mgwidget\" data-widget-id=\"1660802\">\r\n<\/div>\r\n<script>(function(w,q){w[q]=w[q]||[];w[q].push([\"_mgc.load\"])})(window,\"_mgq\");\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/www.theguardian.com\/science\/2024\/dec\/02\/venus-life-water-atmosphere-analysis-science-research\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>With a surface hot enough to melt lead and with clouds of sulphuric acid above it, it is a planet often called Earth\u2019s \u201cevil twin\u201d \u2013 similar in size, yet &hellip; <a href=\"https:\/\/hotvideos24.online\/?p=132652\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8628],"tags":[],"class_list":["post-132652","post","type-post","status-publish","format-standard","hentry","category-science","entry"],"_links":{"self":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/132652","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=132652"}],"version-history":[{"count":0,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/132652\/revisions"}],"wp:attachment":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=132652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=132652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=132652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}