The Spectacle of Betelgeuse's Hypothetical Supernova

Okay, it wouldn't technically be an explosion. And if it's "about" to happen, it already happened. About 650 years ago. We'll explain, with astronomer Emily Levesque, who studies massive stars at the University of Washington. Follow Short Wave's Emily Kwong on Twitter @emilykwong1234. Email the show at shortwave@npr.org.

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