{"id":639780,"date":"2019-12-06T05:21:00","date_gmt":"2019-12-06T09:21:00","guid":{"rendered":"http:\/\/spaceweekly.com\/?p=639780"},"modified":"2019-12-06T05:21:00","modified_gmt":"2019-12-06T09:21:00","slug":"a-dramatic-demise","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=639780","title":{"rendered":"A dramatic demise"},"content":{"rendered":"

<\/p>\n

Some of the most dramatic events in the Universe occur when certain stars die \u2014 and explode catastrophically in the process.<\/p>\n

Such explosions, known as\u00a0supernovae, mainly occur in a couple of ways: either a massive star depletes its fuel at the end of its life, become dynamically unstable and unable to support its bulk, collapses inwards, and then\u00a0violently explodes; or a\u00a0white dwarf\u00a0in an orbiting stellar couple syphons more mass off its companion than it is able to support, igniting runaway\u00a0nuclear fusion\u00a0in its core and\u00a0beginning the supernova process. Both types result in an intensely bright object in the sky that can rival the light of a whole galaxy.<\/p>\n

In the last 20 years the galaxy NGC 5468, visible in this image, has hosted a number of observed supernovae of both the aforementioned types: SN 1999cp, SN 2002cr, SN2002ed, SN2005P, and SN2018dfg. Despite being just over 130 million light-years away, the orientation of the galaxy with respect to us makes it easier to spot these new \u2018stars\u2019 as they appear; we see NGC 5468 face on, meaning we can see the galaxy\u2019s loose, open spiral pattern in beautiful detail in images such as this one from the\u00a0NASA\/ESA Hubble Space Telescope.<\/p>\n


\n
\n
\n Click here for original story, A dramatic demise<\/a>
\n
\n
\nSource: ESA Top Multimedia <\/p>\n","protected":false},"excerpt":{"rendered":"

Some of the most dramatic events in the Universe occur when certain stars die \u2014 and explode catastrophically in the process. Such explosions, known as\u00a0supernovae, mainly occur in a couple… <\/p>\n","protected":false},"author":1,"featured_media":639781,"comment_status":"false","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-639780","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-multimedia"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/639780","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=639780"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/639780\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/639781"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=639780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=639780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=639780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}