{"id":17060,"date":"2023-09-11T10:06:18","date_gmt":"2023-09-11T10:06:18","guid":{"rendered":"https:\/\/www.nextias.com\/current_affairs\/?p=17060"},"modified":"2023-09-13T10:06:29","modified_gmt":"2023-09-13T10:06:29","slug":"erg-chech-002-meteorite-11-09-2023","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/ca\/current-affairs\/11-09-2023\/erg-chech-002-meteorite-11-09-2023","title":{"rendered":"Erg Chech 002 Meteorite &#8211; 11-09-2023"},"content":{"rendered":"\n<p><strong>Syllabus: GS-3\/Science<\/strong><\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">In News<\/span><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Scientists have conducted an analysis of the Erg Chech 002 meteorite, one of the oldest space rocks ever discovered. The data could provide insights into the early solar system.<\/li>\n<\/ul>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Erg Chech 002<\/span><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Erg Chech 002 meteorite, which is approximately 4.6 billion years old, was found in the Erg Chech region of the Sahara Desert in Algeria in 2020.<\/li>\n\n\n\n<li>Meteorites like Erg Chech 002 are thought to have formed from material in a disk of gas and dust around the young Sun.<\/li>\n<\/ul>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Achondrites<\/span><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Erg Chech 002 is an achondrite rock formed by melting planetesimals, was combined with existing data regarding angrite meteorites \u200a\u2014\u200a a rare group of achondrites.<\/li>\n\n\n\n<li>Achondrites are meteorites that show signs of having experienced melting and have features similar to volcanic rock here on Earth.<\/li>\n<\/ul>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Using Aluminum-26 as a dating system<\/span><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Erg Chech 002 contained the radioactive isotope Aluminum-26 when it formed, which is significant because this unstable form of aluminum played a role in a later stage of Earth\u2019s evolution known as <strong>\u201cplanetary melting.\u201d<\/strong><\/li>\n\n\n\n<li>To understand how Aluminum-26 was distributed during the formation of the planets, scientists use it as a dating system for space rocks.<strong> Aluminum-26 decays into Magnesium-26,<\/strong> which is stable, allowing scientists to determine the age of meteorites.<\/li>\n<\/ul>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Planetary melting<\/span><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Planetary melting is the process which rocky planets, like Earth, formed layers with different compositions.<\/li>\n\n\n\n<li>This differentiation happened as denser material sank to the core, resulting in the formation of a dense metal core and a less dense rocky mantle.<\/li>\n<\/ul>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">Difference between a meteor, meteoroid, and meteorite?<\/span><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Meteoroids:<\/strong> Meteoroids are objects in space that range in size from dust grains to small asteroids.<\/li>\n\n\n\n<li><strong>Meteors:<\/strong> When meteoroids enter Earth\u2019s atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or \u201cshooting stars\u201d are called meteors.<\/li>\n\n\n\n<li><strong>Meteorite:<\/strong> When a meteoroid survives a trip through the atmosphere and hits the ground, it\u2019s called a meteorite.<\/li>\n<\/ul>\n\n\n\n<p><strong>Source: <\/strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/sahara-space-rock-45-billion-years-old-upends-assumptions-about-the-early-solar-system\/article67273127.ece\" target=\"_blank\" rel=\"noopener\"><strong>TH<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Syllabus: GS-3\/Science In News Erg Chech 002 Achondrites Using Aluminum-26 as a dating system Planetary melting Difference between a meteor, meteoroid, and meteorite? Source: TH<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-17060","post","type-post","status-publish","format-standard","hentry","category-current-affairs"],"acf":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/17060","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/comments?post=17060"}],"version-history":[{"count":1,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/17060\/revisions"}],"predecessor-version":[{"id":17061,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/17060\/revisions\/17061"}],"wp:attachment":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media?parent=17060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/categories?post=17060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/tags?post=17060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}