{"id":153064,"date":"2022-08-23T16:51:41","date_gmt":"2022-08-23T11:21:41","guid":{"rendered":"https:\/\/caravanalive.com\/?p=153064"},"modified":"2022-08-23T16:51:41","modified_gmt":"2022-08-23T11:21:41","slug":"where-did-earths-early-life-forms-get-oxygen-scientists-finally-have-some-answers-checkout","status":"publish","type":"post","link":"https:\/\/www.caravanalive.com\/?p=153064","title":{"rendered":"Where Did Earth\u2019s Early Life Forms Get Oxygen? Scientists Finally Have Some Answers; Checkout!"},"content":{"rendered":"<div class=\"2a6a8c3593e6620bd92d71f585bdd19b\" data-index=\"4\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6453632170035383\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- NEW RESPONSIVE -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6453632170035383\"\r\n     data-ad-slot=\"2960496911\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>By studying the genomes of common lifeforms, scientists know that the first organisms on Earth had genes that could break down oxygen and hydrogen peroxide (H2O2).<\/p>\n<p>But how hydrogen peroxide &#8211; which can be a useful source of oxygen when broken down &#8211; got into the water, where the first life evolved, was a mystery. It is known that only trace amounts of H202 were present on the first Earth &#8211; Earth in its first billion years.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-153067 aligncenter\" src=\"https:\/\/caravanalive.com\/wp-content\/uploads\/2022\/08\/life1.jpg\" alt=\"\" width=\"1031\" height=\"712\" srcset=\"https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life1.jpg 1031w, https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life1-300x207.jpg 300w, https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life1-1024x707.jpg 1024w, https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life1-768x530.jpg 768w, https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life1-450x311.jpg 450w, https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life1-869x600.jpg 869w\" sizes=\"auto, (max-width: 1031px) 100vw, 1031px\" \/><\/p>\n<p>Published in the journal Nature Communications, a new peer-reviewed study by scientists at Newcastle University in the United Kingdom shows that tectonic plate movement \u2014 and the associated stresses on the Earth&#8217;s crust \u2014 was a source of oxygen that helped drive the biochemistry where life exists. First evolved on Earth.<\/p>\n<p>In the study, the scientists showed how, in oxygen-free conditions, large amounts of H2O2 can be released from the rock when water is added and the temperature approaches the boiling point. The study found that only trace amounts of H2O2 were released from the same rocks when temperatures dropped below 80\u2009\u00b0C.<\/p>\n<p>This window of temperature matches the suspected range of temperatures where scientists believe early life forms could have evolved in hot volcanic vents near the ocean floor.<\/p>\n<p>The authors of the study wrote, &#8220;We propose that the thermal activation of mineral surface defects during geological fault movements and associated stresses in the Earth\u2019s crust was a source of oxidants that helped drive the (bio)geochemistry of hot fractures where life first evolved.&#8221;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-153065 aligncenter\" src=\"https:\/\/caravanalive.com\/wp-content\/uploads\/2022\/08\/life2.jpg\" alt=\"\" width=\"1031\" height=\"712\" srcset=\"https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life2.jpg 1031w, https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life2-300x207.jpg 300w, https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life2-1024x707.jpg 1024w, https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life2-768x530.jpg 768w, https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life2-450x311.jpg 450w, https:\/\/www.caravanalive.com\/wp-content\/uploads\/2022\/08\/life2-869x600.jpg 869w\" sizes=\"auto, (max-width: 1031px) 100vw, 1031px\" \/><\/p>\n<p>Last Universal Common Ancestor or LUCA is a term that refers to a population of organisms that is the most common recent ancestor of all life on Earth today. LUCA is not the first life form on Earth, but the most recent ancestor of everything alive today.<\/p>\n<p>The team of UK scientists presented experimental evidence showing that the temperature of the environment where LUCA lived was an important factor as it contributed to the local production of H2O2.<\/p>\n<p>They show that when volcanic or tectonic activity occurs under high temperatures, the pressure and heat generated open faults in the silicate rocks, which react with water, releasing high concentrations of H2O2 and other oxygenated compounds.<\/p>\n<p>&nbsp;<\/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>By studying the genomes of common lifeforms, scientists know that the first organisms on Earth had genes that could break down oxygen and hydrogen peroxide (H2O2). But how hydrogen peroxide &#8211; which can be a useful source of oxygen when broken down &#8211; got into the water, where the first life evolved, was a mystery. [&hellip;]<\/p>\n","protected":false},"author":63,"featured_media":153066,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[{"category_id":36,"category_link":"https:\/\/www.caravanalive.com\/?cat=36","category_name":"Article"},{"category_id":4344,"category_link":"https:\/\/www.caravanalive.com\/?cat=4344","category_name":"Environment"},{"category_id":511,"category_link":"https:\/\/www.caravanalive.com\/?cat=511","category_name":"Latest News"},{"category_id":137,"category_link":"https:\/\/www.caravanalive.com\/?cat=137","category_name":"News"},{"category_id":33,"category_link":"https:\/\/www.caravanalive.com\/?cat=33","category_name":"Trending"}],"tags":[{"tag_id":6296,"tag_link":"https:\/\/www.caravanalive.com\/?tag=early-life","tag_name":"early life"},{"tag_id":3446,"tag_link":"https:\/\/www.caravanalive.com\/?tag=earth","tag_name":"Earth"},{"tag_id":1193,"tag_link":"https:\/\/www.caravanalive.com\/?tag=expert-advice","tag_name":"Expert Advice"},{"tag_id":6297,"tag_link":"https:\/\/www.caravanalive.com\/?tag=oxygen","tag_name":"oxygen"},{"tag_id":4776,"tag_link":"https:\/\/www.caravanalive.com\/?tag=scientists","tag_name":"Scientists"},{"tag_id":2539,"tag_link":"https:\/\/www.caravanalive.com\/?tag=study","tag_name":"Study"}],"class_list":["post-153064","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-article","category-environment","category-latest-news","category-news","category-trending","tag-early-life","tag-earth","tag-expert-advice","tag-oxygen","tag-scientists","tag-study"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Where Did Earth\u2019s Early Life Forms Get Oxygen? Scientists Finally Have Some Answers; Checkout! - Alive<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.caravanalive.com\/?p=153064\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Where Did Earth\u2019s Early Life Forms Get Oxygen? Scientists Finally Have Some Answers; Checkout! - Alive\" \/>\n<meta property=\"og:description\" content=\"By studying the genomes of common lifeforms, scientists know that the first organisms on Earth had genes that could break down oxygen and hydrogen peroxide (H2O2). But how hydrogen peroxide &#8211; which can be a useful source of oxygen when broken down &#8211; got into the water, where the first life evolved, was a mystery. 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