{"id":201701,"date":"2025-12-20T09:52:12","date_gmt":"2025-12-20T09:52:12","guid":{"rendered":"https:\/\/www.newsbeep.com\/ie\/201701\/"},"modified":"2025-12-20T09:52:12","modified_gmt":"2025-12-20T09:52:12","slug":"betelgeuse-and-the-crab-nebula-stellar-death-and-rebirth","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ie\/201701\/","title":{"rendered":"Betelgeuse and the Crab Nebula: Stellar Death and Rebirth"},"content":{"rendered":"

What happens when a star dies? In 2019, Betelgeuse dimmed in brightness<\/a>, sparking speculation that it may soon explode as a supernova. While it likely won\u2019t explode quite yet, we can preview its fate by observing the nearby Crab Nebula.<\/p>\n

Betelgeuse<\/a> is easy to find as the red-hued shoulder star of Orion. A variable star, Betelgeuse, usually competes with the brilliant blue-white Rigel for the position of the brightest star in Orion. Betelgeuse is a young star, estimated to be a few million years old, but due to its giant size, it leads a fast and furious life. This massive star, known as a supergiant, exhausted the hydrogen fuel in its core and began to fuse helium instead, which caused the outer layers of the star to cool and swell dramatically in size. Betelgeuse is one of the few stars for which we have any detailed surface observations, due to its vast size \u2013 somewhere between the diameters of the orbits of Mars and Jupiter \u2013 and its relatively close distance of about 642 light-years. Betelgeuse is also a \u201crunaway star,\u201d with its remarkable speed possibly triggered by\u00a0a merger with a smaller companion star. If that is the case, Betelgeuse may actually have millions of years left! So, Betelgeuse may not explode soon after all, or it might explode tomorrow! We have much more to learn about this intriguing star.\u00a0\u00a0<\/p>\n

The Crab Nebula (M1)<\/a> is relatively close to Betelgeuse in the sky, in the nearby constellation of Taurus. Its ghostly,\u00a0spidery gas clouds result from a massive explosion; a supernova observed by astronomers in 1054! A backyard telescope allows you to see some details. Still, only advanced telescopes<\/a> reveal the rapidly spinning neutron star found in its center:\u00a0the last stellar remnant from that cataclysmic event. These gas clouds were created during the giant star\u2019s violent demise\u00a0and expand ever outward to enrich the universe with heavy elements like silicon, iron, and nickel. These element-rich clouds are like a cosmic fertilizer, making rocky planets like our own Earth possible. Supernovae also send out powerful shock waves that help trigger star formation. In fact, if it weren\u2019t for a long-ago supernova, our solar system \u2013 along with all of us \u2013 wouldn\u2019t exist! You can learn much more about the Crab Nebula in a video from NASA\u2019s James Webb Space Telescope: bit.ly\/CrabNebulaVisual<\/a><\/p>\n

Want to know more about the life cycle of stars? Explore stellar evolution with \u201cThe Lives of Stars\u201d activity and handout at bit.ly\/starlifeanddeath<\/a>, part of our SUPERNOVA!<\/a> toolkit.<\/p>\n

Originally posted by Dave Prosper: February 2020<\/p>\n

Last Updated by Kat Troche: December 2025<\/p>\n","protected":false},"excerpt":{"rendered":"What happens when a star dies? In 2019, Betelgeuse dimmed in brightness, sparking speculation that it may soon…\n","protected":false},"author":2,"featured_media":201702,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[61,60,19640,82,247],"class_list":{"0":"post-201701","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-space","8":"tag-ie","9":"tag-ireland","10":"tag-night-sky-network","11":"tag-science","12":"tag-space"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/201701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=201701"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/201701\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/201702"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=201701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=201701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=201701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}