{"id":9555,"date":"2021-08-31T01:47:52","date_gmt":"2021-08-30T17:47:52","guid":{"rendered":"https:\/\/bruneiastronomy.org\/web\/?p=9555"},"modified":"2021-08-31T01:48:31","modified_gmt":"2021-08-30T17:48:31","slug":"apod-orbits-of-potentially-hazardous-asteroids","status":"publish","type":"post","link":"https:\/\/bruneiastronomy.org\/web\/2021\/08\/apod-orbits-of-potentially-hazardous-asteroids\/","title":{"rendered":"APOD Orbits of Potentially Hazardous Asteroids"},"content":{"rendered":"\n

NASA APOD – Are<\/strong> asteroids dangerous? Some are, but the likelihood of a dangerous asteroid striking the Earth during any given year is low. Because some past mass\u00a0extinction event<\/a>s have been linked to asteroid impacts, however, humanity has made it a priority to find and catalog those\u00a0asteroids<\/a>\u00a0that may one day affect\u00a0life on Earth<\/a>.\u00a0Pictured here<\/a>\u00a0are the orbits of the over 1,000 known\u00a0Potentially Hazardous<\/a>\u00a0Asteroids (PHAs). These documented tumbling\u00a0boulders<\/a>\u00a0of rock and ice are over 140 meters across and will pass within 7.5 million kilometers of Earth — about 20 times the distance to the Moon. Although none of them will\u00a0strike the Earth<\/a>\u00a0in the next 100 years —\u00a0not all PHAs have been discovered<\/a>, and past 100 years, many orbits become hard to predict. Were an asteroid of this size to\u00a0impact the Earth<\/a>, it could raise\u00a0dangerous tsunamis<\/a>, for example. To investigate Earth-saving strategies, NASA’s\u00a0Double Asteroid Redirection Test<\/a>\u00a0(DART<\/a>) is planned for launch later this year. Of course rocks and ice bits of much smaller size\u00a0strike the Earth every day<\/a>, usually pose no danger, and sometimes creating\u00a0memorable fireball<\/a>\u00a0and\u00a0meteor displays<\/a>.<\/p>\n\n\n\n

\"\"<\/a>
Orbits of Potentially Hazardous Asteroids
Image Credit: NASA, JPL-Caltech<\/figcaption><\/figure>\n\n\n\n

Source: APOD: 2021 August 29 – Orbits of Potentially Hazardous Asteroids (nasa.gov)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

NASA APOD – Are asteroids dangerous? Some are, but the likelihood of a dangerous asteroid…<\/p>\n","protected":false},"author":1,"featured_media":9556,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[3],"tags":[430,140,120,431],"class_list":["post-9555","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-apod","tag-asteroid","tag-nasa","tag-pha"],"_links":{"self":[{"href":"https:\/\/bruneiastronomy.org\/web\/wp-json\/wp\/v2\/posts\/9555","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bruneiastronomy.org\/web\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bruneiastronomy.org\/web\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bruneiastronomy.org\/web\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bruneiastronomy.org\/web\/wp-json\/wp\/v2\/comments?post=9555"}],"version-history":[{"count":0,"href":"https:\/\/bruneiastronomy.org\/web\/wp-json\/wp\/v2\/posts\/9555\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bruneiastronomy.org\/web\/wp-json\/wp\/v2\/media\/9556"}],"wp:attachment":[{"href":"https:\/\/bruneiastronomy.org\/web\/wp-json\/wp\/v2\/media?parent=9555"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bruneiastronomy.org\/web\/wp-json\/wp\/v2\/categories?post=9555"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bruneiastronomy.org\/web\/wp-json\/wp\/v2\/tags?post=9555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}