{"id":124526,"date":"2019-06-25T18:40:13","date_gmt":"2019-06-25T18:40:13","guid":{"rendered":"https:\/\/www.bnreport.com\/dried-earth-microbes-could-grow-on-mars-with-just-a-little-humidity\/"},"modified":"2019-06-25T18:40:13","modified_gmt":"2019-06-25T18:40:13","slug":"dried-earth-microbes-could-grow-on-mars-with-just-a-little-humidity","status":"publish","type":"post","link":"https:\/\/www.bnreport.com\/en\/dried-earth-microbes-could-grow-on-mars-with-just-a-little-humidity\/","title":{"rendered":"Dried Earth microbes could grow on Mars with just a little humidity"},"content":{"rendered":"<p><strong>SAN FRANCISCO<\/strong> \u2014 Salt-loving microbes can dry out and come back to life with just a little humidity, researchers have demonstrated for the first time.<\/p>\n<p>Scientists have suspected that microbes in arid places may get their moisture from humidity alone, but no one has shown that dried-out microbes can revive with water sucked from the air. Dessicated <em>Halomonas<\/em> bacteria from Washingtons Hot Lake perked up and began growing again after absorbing humidity in a jar, astrobiologist Mark Schneegurt, of Wichita State University in Kansas, said June 21 at the ASM Microbe 2019 meeting. That discovery has implications for the search for life on other planets, and for preventing life from Earth from <a href=\"https:\/\/www.sciencenews.org\/article\/manned-mission-mars-humans-microbes-life\" rel=\"noreferrer noopener\" target=\"_blank\">contaminating other worlds<\/a> (<em>SN: 1\/20\/18, p. 22<\/em>).<\/p>\n<p>Schneegurt and colleagues grew <em>Halomonas<\/em> bacteria in magnesium sulfate brines. Magnesium sulfate (also called Epsom salts) and perchlorates are the main types of salts found on Mars. Those salts dont play keep-away with water molecules the way sodium salts do, so microbes have a better chance of snagging some moisture.<\/p>\n<p>Magnesium salt\u2013tolerant microbes have been detected in clean rooms where NASA builds its spacecraft, Schneegurt said. \u201cTheres definitely life on Mars. It just came from Earth,\u201d he said. The question is \u201chow worried do we have to be that an organism from Earth can survive and grow there?\u201d<\/p>\n<p><em>Halomonas<\/em> growing in magnesium brines at room tem<a href=\"https:\/\/www.sciencenews.org\/article\/dried-earth-microbes-could-grow-mars-just-little-humidity\" rel=\"noreferrer noopener\" target=\"_blank\"><strong>Read More \u2013 Source<\/strong><\/a><br \/>\n[contf]<br \/>\n[contfnew]<br \/>\n        <img decoding=\"async\" src=\"https:\/\/www.sciencenews.org\/profiles\/sn\/themes\/science_news\/logo.png\"\/><\/p>\n<h5><a href=\"https:\/\/app.newswirenow.co.uk\/www.sciencenews.org\" rel=\"noreferrer noopener\" target=\"_blank\">science news<\/a><\/h5>\n<p>[contfnewc]<br \/>\n[contfnewc]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SAN FRANCISCO \u2014 Salt-loving microbes can dry out and come back to life with just a little humidity, ..<\/p>\n","protected":false},"author":1,"featured_media":124527,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-124526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - 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