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640 light years away, Betelgeuse has already blown up once, but it's now trying to heal itself

Betelgeuse, the bright star in Earth's night sky, has been of interest to astronomers for more than 200 years. Betelgeuse is of great interest because it's a red supergiant. Located 640 to 720 light-years from Earth, it could go supernova at any time. It's also targeted because of the frequent changes in brightness that precede …

640 light years away, Betelgeuse has already blown up once, but it's now trying to heal itself Read More »