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Astronomy

The constellation Orion, with Betelgeuse the reddish star in the top left

One of the Brightest Stars In the Night Sky Is Getting Dimmer

Daniel Hautzinger

Betelgeuse, a red supergiant that is part of the constellation Orion, has recently been unusually dimmer. Is it the sign of an impending supernova, or something else—and what can it teach us about stars and the origins of the universe?
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