The star Betelgeuse became visibly darker in 2019

The star Betelgeuse became visibly darker in 2019 and 2020, puzzling astronomers; new images show that the star was partially concealed by a cloud of dust, solving the mystery of the ‘Great Dimming’ of Betelgeuse. When Betelgeuse, a bright orange star in the constellation of Orion, lost more than two-thirds of its brightness in late […]

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