{"id":16875,"date":"2023-11-10T12:33:26","date_gmt":"2023-11-10T07:03:26","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=16875"},"modified":"2025-04-05T00:37:48","modified_gmt":"2025-04-04T19:07:48","slug":"auroras","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/auroras\/","title":{"rendered":"What are Auroras?"},"content":{"rendered":"<h2>About Auroras<\/h2>\n<ul>\n<li>An aurora is a\u00a0natural phenomenon that is characterised by a\u00a0display of a natural-coloured (green, red, yellow, or white)\u00a0light in the sky.<\/li>\n<li>What causes it?\n<ul>\n<li>It is a light show which is caused when\u00a0electrically-charged particles\u00a0from the\u00a0sun interact with the\u00a0Earth&#8217;s magnetosphere and atmosphere.<\/li>\n<li>Solar particles\u00a0interact with different types of gas molecules in the atmosphere, mostly nitrogen and oxygen, resulting in unique, colored displays of light.<\/li>\n<li>Oxygen gives off green and red light, while nitrogen glows blue and reddish-purple.<\/li>\n<\/ul>\n<\/li>\n<li>It is sometimes\u00a0referred to as \u2018polar light\u2019. It is\u00a0predominantly seen\u00a0in\u00a0regions of\u00a0high altitudes like the Arctic and Antarctic.<\/li>\n<li>In the Northern Hemisphere, the phenomenon is\u00a0called the northern lights (aurora borealis), while in the\u00a0Southern Hemisphere; it&#8217;s\u00a0called the southern lights (aurora australis).<\/li>\n<li>Auroras\u00a0can appear in various forms, like\u00a0streamers, patches, arcs, scattered light, diffused light, etc.<\/li>\n<li>Do other planets have Auroras?\n<ul>\n<li>Earth isn\u2019t the only planet that experiences auroras.<\/li>\n<li>Any planet with an\u00a0atmosphere and a magnetic field is\u00a0likely to have auroras.<\/li>\n<li>Auroras have been\u00a0observed on Saturn and Jupiter.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>Q1) What is Earth\u2019s Magnetosphere?<\/h3>\n<p>The magnetosphere is the region around a celestial body, such as a planet or a moon, where its magnetic field dominates the influence of the solar wind\u2014a continuous stream of charged particles, mainly electrons and protons, emitted by the Sun.Other planets in our solar system have magnetospheres, but Earth has the strongest one of all the rocky planets.The Earth&#8217;s magnetosphere is a protective magnetic shield that plays a crucial role in shielding the planet from the solar wind and cosmic rays.<\/p>\n<p><strong>Source:<\/strong> <a href=\"https:\/\/www.ndtv.com\/feature\/nasa-shares-stunning-image-of-aurora-taken-from-international-space-station-4558696\" target=\"_blank\" rel=\"nofollow noopener\"><u>NASA Shares Stunning Image Of Aurora Taken From International Space Station<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>An aurora is a natural phenomenon that is characterised by a display of a natural-coloured (green, red, yellow, or white) light in the sky.<\/p>\n","protected":false},"author":5,"featured_media":16876,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-16875","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\/16875","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=16875"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/16875\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/16876"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=16875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=16875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=16875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}