{"id":4728,"date":"2023-01-18T11:59:17","date_gmt":"2023-01-18T06:29:17","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=4728"},"modified":"2025-03-27T02:04:31","modified_gmt":"2025-03-26T20:34:31","slug":"what-is-a-giant-metrewave-radio-telescope","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/what-is-a-giant-metrewave-radio-telescope\/","title":{"rendered":"What is a Giant Metrewave Radio Telescope?"},"content":{"rendered":"<h3><strong>Why in news?\u00a0<\/strong><\/h3>\n<ul>\n<li>Astronomers from McGill University in Canada and the Indian Institute of Science (IISc) in Bengaluru have used data from the telescope to detect atomic hydrogen.\u00a0\u00a0<\/li>\n<\/ul>\n<h3><strong>Key facts about Giant Metrewave Radio Telescope<\/strong><\/h3>\n<ul>\n<li>It is a <strong>low-frequency radio telescope<\/strong> that helps investigate various radio astrophysical problems ranging from nearby solar systems to the edge of the observable universe.<\/li>\n<li>It is operated by the <strong>National Centre for Radio Astrophysics<\/strong> (NCRA), a part of the Tata Institute of Fundamental Research, Mumbai.<\/li>\n<\/ul>\n<h3><strong>What is Atomic Hydrogen?<\/strong><\/h3>\n<ul>\n<li>Atomic hydrogen is the basic fuel required for <strong>star formation<\/strong> in a galaxy.\u00a0<\/li>\n<li>When hot ionised gas from the surrounding medium of a galaxy falls onto the universe, the gas cools and forms atomic hydrogen.\u00a0<\/li>\n<li>This atomic hydrogen then becomes molecular hydrogen and eventually leads to the formation of stars.\u00a0<\/li>\n<li>Atomic hydrogen <strong>emits radio waves<\/strong> of 21 cm wavelength, which helps in the direct tracing of the atomic gas content in nearby and distant galaxies.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3>Q1) What are the properties of Hydrogen?<\/h3>\n<p>Hydrogen (H), is a coourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements.<\/p>\n<p><strong>Source:<\/strong>\u00a0<u>\u00a0Giant Metrewave Radio Telescope in Pune helps detect atomic hydrogen from a far-away galaxy<\/u><\/p>\n","protected":false},"excerpt":{"rendered":"<p>GMRT is a low-frequency radio telescope that helps investigate various radio astrophysical problems.<\/p>\n","protected":false},"author":5,"featured_media":4729,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-4728","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/4728","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=4728"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/4728\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/4729"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=4728"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=4728"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=4728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}