{"id":2696,"date":"2023-02-05T04:31:57","date_gmt":"2023-02-04T23:01:57","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=2696"},"modified":"2025-03-25T23:44:11","modified_gmt":"2025-03-25T18:14:11","slug":"hubble-space-telescope","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/hubble-space-telescope\/","title":{"rendered":"Hubble Space Telescope"},"content":{"rendered":"<h2>Why in news?<\/h2>\n<ul>\n<li>The Hubble Space Telescope measured the mass of a white dwarf designated LAWD 37, which burned out over 1 billion years ago.\u00a0<\/li>\n<li>In the work, scientists used a phenomenon <strong>called gravitational lensing.<\/strong><\/li>\n<\/ul>\n<h3>\u00a0What is Gravitational lensing?<\/h3>\n<ul>\n<li>It was first predicted in 1915 by <strong>Albert Einstein<\/strong> which involves the bending of light by objects of great mass.<\/li>\n<li>A gravitational lens can occur when <strong>a huge amount of matter<\/strong>, like a cluster of galaxies, <strong>creates a gravitational field<\/strong> that distorts and magnifies the light from distant galaxies that are behind it but in the same line of sight.\u00a0<\/li>\n<li>The effect allows researchers to <strong>study the details of early galaxies<\/strong> too far away to be seen otherwise with even the most powerful space telescopes.\u00a0<\/li>\n<\/ul>\n<h3>Key facts about the Hubble telescope<\/h3>\n<ul>\n<li>It is named in honour of the trailblazing <strong>astronomer Edwin Hubble which was launched by\u00a0 NASA.<\/strong><\/li>\n<li>It is a large, <strong>space-based observatory<\/strong>, which has revolutionized astronomy since its launch and deployment by the space shuttle Discovery in 1990.<\/li>\n<li>Hubble\u2019s domain extends from the ultraviolet through the visible (which our eyes see) and into the near infrared.<\/li>\n<li>It is one of <strong>NASA&#8217;s Great Observatories Programs<\/strong>. The other missions in the program include the visible-<strong>light Spitzer Space Telescope<\/strong>, <strong>Compton Gamma-Ray<\/strong> Observatory (CGRO), and the <strong>Chandra X-Ray Observatory<\/strong> (CXO).<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3>Q1) What is the Chandra X-Ray Observatory?<\/h3>\n<p>NASA&#8217;s Chandra X-ray Observatory is a telescope specially designed to detect X-ray emissions from very hot regions of the Universe such as exploded stars, clusters of galaxies, and matter around black holes<\/p>\n<p><strong>Source:\u00a0<\/strong><a href=\"https:\/\/indianexpress.com\/article\/technology\/hubble-space-telescope-gravitational-lensing-8424026\/\" target=\"_blank\" rel=\"nofollow noopener\"><u>NASA\u2019s Hubble telescope and gravitational lensing aid astronomers in measuring the mass of a dwarf star<\/u><\/a>\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Hubble Space Telescope measured the mass of a white dwarf designated LAWD 37.<\/p>\n","protected":false},"author":5,"featured_media":2697,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-2696","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\/2696","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=2696"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/2696\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/2697"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=2696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=2696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=2696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}