{"id":16642,"date":"2023-11-04T07:43:07","date_gmt":"2023-11-04T02:13:07","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=16642"},"modified":"2025-04-04T22:20:28","modified_gmt":"2025-04-04T16:50:28","slug":"kepler-space-telescope","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/kepler-space-telescope\/","title":{"rendered":"Kepler Space Telescope"},"content":{"rendered":"<h2>About Kepler Space Telescope<\/h2>\n<ul>\n<li>It was\u00a0NASA\u2019s first planet-hunting mission, assigned\u00a0to search a portion of the Milky Way galaxy\u00a0for Earth-sized planets\u00a0orbiting stars outside our solar system.<\/li>\n<li>It was launched on March 6, 2009.<\/li>\n<li>The spacecraft was named after the famed German astronomer Johannes Kepler (1571-1630).<\/li>\n<li>Its scientific goals included\u00a0determining the\u00a0abundance of earth-sized planets and the\u00a0distribution of sizes and shapes of their orbits, estimating the number of planets in multiple-star systems, and\u00a0determining the properties of stars\u00a0that have planetary systems.<\/li>\n<li>In December 2011, NASA announced that\u00a0Kepler had found its first planet, Kepler-22b, in the habitable zone of a star.<\/li>\n<li>On October 30, 2018, after nine years in deep space collecting data,\u00a0NASA announced that Kepler had run out of fuel. The spacecraft was\u00a0retired in its current, safe orbit, away from Earth.<\/li>\n<li>Kepler\u00a0left behind a legacy of more than 2,600 planet discoveries from outside our solar system, many of which could be promising places for life.<\/li>\n<li>Features:\n<ul>\n<li>Kepler\u00a0detected planets by observing transits,\u00a0or tiny dips in the brightness of a star that\u00a0occur when a planet crosses in front of the star.<\/li>\n<li>The spacecraft was\u00a0basically a single instrument &#8211; a specially designed\u00a03-foot (1-meter) diameter aperture telescope and image sensor array \u2013 with a spacecraft built around it.<\/li>\n<li>The\u00a0diameter of the telescope\u2019s\u00a0mirror was\u00a04 feet, 7 inches (1.4 meters), making it\u00a0one of the largest mirrors beyond Earth\u2019s orbit.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>Q1) What is the aperture of a telescope?<\/h3>\n<p>A telescope\u2019s aperture refers to the diameter of the lens or mirror the telescope uses to collect light. A bigger lens or mirror has a higher aperture, meaning it\u2019s able to collect more light. The more light that\u2019s collected, the better you\u2019ll be able to see faint objects. Aperture power increases dramatically as you size up the lens or mirror; for example, a telescope with a 200 mm aperture will be able to collect four times as much light as a 100 mm aperture.<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/www.nasa.gov\/general\/scorching-seven-planet-system-revealed-by-new-kepler-exoplanet-list\/\" target=\"_blank\" rel=\"nofollow noopener\"><u>Scorching, Seven-Planet System Revealed by New Kepler Exoplanet List<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kepler Space Telescope was NASA\u2019s first planet-hunting mission.<\/p>\n","protected":false},"author":5,"featured_media":16643,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-16642","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\/16642","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=16642"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/16642\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/16643"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=16642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=16642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=16642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}