• March 8, 2012

    Episode 382: Betelgeuse's Demise

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    Earth might someday have a second sun in the sky, at least for a few weeks. This would occur when one of the brightest stars in the sky explodes as a supernova. The star is Betelgeuse, the red giant that marks the shoulder of the northern winter constellation Orion the hunter. But don't count on it to happening anytime soon.