{"id":19061,"date":"2024-01-07T06:40:40","date_gmt":"2024-01-07T01:10:40","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=19061"},"modified":"2025-04-05T15:01:01","modified_gmt":"2025-04-05T09:31:01","slug":"30-doradus-b","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/30-doradus-b\/","title":{"rendered":"What is 30 Doradus B?"},"content":{"rendered":"<h2>Why in News?<\/h2>\n<ul>\n<li>The team of astronomers studying the remnant\u00a0discovered that it could not have been formed by a single supernova. Instead, the researchers believe it was created by at least two.\u00a0<\/li>\n<\/ul>\n<h2>About 30 Doradus B<\/h2>\n<ul>\n<li>30 Doradus B, also cataloged as\u00a0NGC 2060, is a\u00a0supernova remnant found in the\u00a0Large Magellanic Cloud, a small\u00a0satellite galaxy of the Milky Way.<\/li>\n<li>It is\u00a0part of a large star-forming region where stars have been continuously forming for the past 8 to 10 million years.<\/li>\n<li>It is a\u00a0complex landscape of dark clouds of gas, young stars, high-energy shocks, and superheated gas, located\u00a0160,000 light-years away from Earth.<\/li>\n<\/ul>\n<h2>What is a Supernova?<\/h2>\n<ul>\n<li>A supernova is the\u00a0explosion of a star whose\u00a0luminosity after an eruption suddenly increases\u00a0many millions of times its normal level.<\/li>\n<li>Supernovas are &#8220;the\u00a0largest explosion\u00a0that takes place in space.&#8221;<\/li>\n<li>A star can go supernova in one of\u00a0two ways:\n<ul>\n<li>Type I supernova: The star\u00a0accumulates matter from\u00a0a nearby neighbour\u00a0until a runaway nuclear reaction ignites.<\/li>\n<li>Type II supernova: The star\u00a0runs out of nuclear fuel and collapses under its own gravity.<\/li>\n<\/ul>\n<\/li>\n<li>Supernovas can briefly\u00a0outshine entire galaxies and\u00a0radiate more energy\u00a0than our\u00a0sun will in its entire lifetime.<\/li>\n<li>They&#8217;re also the\u00a0primary source of heavy elements in the universe.<\/li>\n<li>They\u00a0heat up the interstellar medium,\u00a0distribute heavy elements throughout the Galaxy, and\u00a0accelerate cosmic rays.<\/li>\n<\/ul>\n<h2>Key Facts about NASA\u2019s Chandra X-ray Observatory<\/h2>\n<ul>\n<li>It is\u00a0a telescope specially\u00a0designed to detect X-ray emission from very hot regions of the Universe, such as exploded stars, clusters of galaxies, and matter around black holes.\u00a0<\/li>\n<li>It\u00a0was launched by NASA\u00a0on July 23, 1999.<\/li>\n<li>Because X-rays are absorbed by Earth\u2019s atmosphere,\u00a0Chandra\u00a0must orbit above it, up to an altitude of 139,000 km (86,500 mi) in space.\u00a0<\/li>\n<\/ul>\n<hr \/>\n<h3>Q1) What are X-rays?<\/h3>\n<p>X-rays are a form of electromagnetic radiation, similar to visible light. Unlike light, however, x-rays have higher energy and can pass through most objects, including the body. Medical x-rays are used to generate images of tissues and structures inside the body.<\/p>\n<p><strong>Source:<\/strong> <a href=\"https:\/\/www.indiatoday.in\/science\/story\/nasa-telescope-rings-in-2024-by-capturing-two-mega-star-explosions-in-space-2484340-2024-01-04\" target=\"_blank\" rel=\"nofollow noopener\"><u>Nasa telescope rings in 2024 by capturing two mega star explosions in space<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>30 Doradus B, also cataloged as NGC 2060, is a supernova remnant found in the Large Magellanic Cloud, a small satellite galaxy of the Milky Way.<\/p>\n","protected":false},"author":5,"featured_media":19062,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-19061","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\/19061","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=19061"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/19061\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/19062"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=19061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=19061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=19061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}