{"id":180469,"date":"2019-12-02T21:45:24","date_gmt":"2019-12-02T13:45:24","guid":{"rendered":"https:\/\/www.geek.com\/featured\/-1812315\/"},"modified":"2019-12-02T21:45:24","modified_gmt":"2019-12-02T13:45:24","slug":"esas-hera-asteroid-deflection-mission-gets-green-light","status":"publish","type":"post","link":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/2019\/12\/02\/esas-hera-asteroid-deflection-mission-gets-green-light\/","title":{"rendered":"ESA\u2019s Hera Asteroid Deflection Mission Gets Green Light"},"content":{"rendered":"<figure>\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/www.geek.com\/wp-content\/uploads\/2019\/12\/hera-1-650x366.jpg?resize=640%2C360&#038;ssl=1\" width=\"640\" height=\"360\" data-recalc-dims=\"1\" \/><\/p>\n<div class=\"figcaption\">Europe&#8217;s space ministers approved ESA&#8217;s Hera asteroid mission for construction and launch (via European Space Agency\/YouTube)<\/div>\n<\/figure>\n<p><span style=\"font-weight: 400;\">The European Space Agency&#8217;s asteroid deflection mission <a href=\"http:\/\/www.esa.int\/ESA_Multimedia\/Videos\/2019\/11\/ESA_s_Hera_asteroid_mission_is_go\"  rel=\"noopener\">is a go<\/a>.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.esa.int\/Safety_Security\/Hera\"  rel=\"noopener\">Hera<\/a>\u2014&#8221;humanity&#8217;s first-ever spacecraft to visit a double asteroid&#8221;\u2014has been greenlit for construction and launch as part of the organization&#8217;s broader planetary defense initiatives.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Named for the Greek goddess of marriage,\u00a0Hera will <a href=\"https:\/\/www.geek.com\/news\/self-driving-spacecraft-could-save-earth-from-asteroid-impacts-1781953\/\"  rel=\"noopener\">steer itself through space<\/a>, autonomously navigating as close as 218 yards from the smaller of the two planetoids: 350-foot-wide Didymos B\u2014affectionately known as the &#8220;Didymoon.&#8221;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Small asteroids hit Earth almost daily, but most break and burn in the upper atmosphere, leaving no discernable traces on our world. Objects larger than 0.6 miles\u2014like the Chelyabinsk meteor, caused by an approximately 22-yard near-Earth asteroid\u2014can have devastating effects.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In hopes of avoiding disaster, NASA recently began developing a spacecraft to pummel asteroids and knock them off a course for our planet.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The <a href=\"https:\/\/www.geek.com\/tech\/nasas-asteroid-smashing-spacecraft-could-save-earth-1706032\/\"  rel=\"noopener\">Double Asteroid Redirection Test<\/a>, or DART, is set to be the first space mission to demonstrate asteroid deflection by a kinetic impactor (i.e. strike the satellite to shift its orbit).<\/span><\/p>\n<div class=\"flex-video widescreen embed\"><iframe loading=\"lazy\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/7Uf5MRZfJDw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/div>\n<p><span style=\"font-weight: 400;\">In October 2022, the refrigerator-sized craft is expected to navigate to the <a href=\"https:\/\/www.geek.com\/news\/double-asteroid-hurtling-by-earth-at-43000-mph-captured-in-bright-photo-1790279\/\"  rel=\"noopener\">asteroid system<\/a> and use an onboard autonomous targeting system to aim itself at the Didymoon.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">That&#8217;s when the fireworks start: DART strikes the planetoid at a speed nine times faster than a bullet\u2014about 3.7 miles per second\u2014jolting it ever so slightly off balance.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Earth-based observatories can then see the impact and watch the change in orbit of Didymos B around Didymos A, allowing scientists to &#8220;better determine the capabilities of kinetic impact as an asteroid mitigation strategy,&#8221; according to NASA.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Due for an autumn 2023 launch, and set to reach its target three years later, <a href=\"https:\/\/www.geek.com\/news\/queen-guitarist-brian-may-explains-esas-hera-asteroid-deflection-mission-1793665\/\"  rel=\"noopener\">Hera will navigate<\/a> in three different modes as it inches closer to the binary asteroid system.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Two on-board CubeSats can fly much closer to the surface, carrying out scientific studies before touching down.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">&#8220;Up-close observations will turn asteroid deflection into a well-understood planetary defense technique,&#8221; ESA said.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">DART and Hera are both part of the international <a href=\"http:\/\/www.esa.int\/Safety_Security\/Hera\/Asteroid_Impact_Deflection_Assessment_AIDA_collaboration\"  rel=\"noopener\">Asteroid Impact and Deflection Assessment (AIDA) mission<\/a>.<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">More on Geek.com:<\/span><\/i><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><a href=\"https:\/\/www.geek.com\/news\/scientists-uncover-new-evidence-of-asteroid-that-killed-dinosaurs-1803507\/\"  rel=\"noopener\"><span style=\"font-weight: 400;\">Scientists Uncover New Evidence of Asteroid That Killed Dinosaurs<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\"><a href=\"https:\/\/www.geek.com\/news\/dont-worry-an-asteroid-wont-collide-with-earth-this-year-1796131\/\"  rel=\"noopener\"><span style=\"font-weight: 400;\">Don&#8217;t Worry: An Asteroid Won&#8217;t Collide With Earth This Year<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\"><a href=\"https:\/\/www.geek.com\/news\/astronauts-need-your-help-to-fight-light-pollution-1807237\/\"  rel=\"noopener\"><span style=\"font-weight: 400;\">Astronauts Need Your Help to Fight Light Pollution<\/span><\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.geek.com\/wp-content\/uploads\/2019\/12\/hera-1-650x366.jpg\" width=\"650\" height=\"366\"><\/p>\n<div>Europe&#8217;s space ministers approved ESA&#8217;s Hera asteroid mission for construction and launch (via European Space Agency\/YouTube)<\/div>\n<\/figure>\n<p>The European Space Agency&rsquo;s asteroid deflection mission is a go. Hera&mdash;&rdquo;humanity&rsquo;s first-ever spacecraft to visit a double asteroid&rdquo;&mdash;has been greenlit for construction and launch as part of the organization&rsquo;s broader planetary defense initiatives. [&hellip;]<\/p>\n<p>The post <a rel=\"nofollow\" href=\"https:\/\/www.geek.com\/tech\/esas-hera-asteroid-deflection-mission-gets-green-light-1812315\/\">ESA&rsquo;s Hera Asteroid Deflection Mission Gets Green Light<\/a> appeared first on <a rel=\"nofollow\" href=\"https:\/\/www.geek.com\/\">Geek.com<\/a>.<\/p>\n<p> <a href=\"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/2019\/12\/02\/esas-hera-asteroid-deflection-mission-gets-green-light\/\">\u95b1\u8b80\u5168\u6587 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":26,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"slim_seo":[],"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[7360,7361,7362,7363,6587,4414,7364,2,2542,2047,2825,2077,7],"tags":[364,398,402,397,414,413,410,409,407,408,406,399,400,394,10,401,372,396,403,412,374,411,395,371,405,404,366],"jetpack_publicize_connections":[],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p7prtj-KWN","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/wp-json\/wp\/v2\/posts\/180469"}],"collection":[{"href":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/wp-json\/wp\/v2\/comments?post=180469"}],"version-history":[{"count":3,"href":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/wp-json\/wp\/v2\/posts\/180469\/revisions"}],"predecessor-version":[{"id":181510,"href":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/wp-json\/wp\/v2\/posts\/180469\/revisions\/181510"}],"wp:attachment":[{"href":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/wp-json\/wp\/v2\/media?parent=180469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/wp-json\/wp\/v2\/categories?post=180469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/wp-json\/wp\/v2\/tags?post=180469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}