Study of supergiant star Betelgeuse unveils the cause of its pulsations

ScienceDaily
Feb 8, 2021, 10:05 am125 pts
Betelgeuse is normally one of the brightest, most recognizable stars of the winter sky, marking the left shoulder of the constellation Orion. But lately, it has been behaving strangely: an unprecedentedly large drop in its brightness has been observed in early 2020, which has prompted speculation that…

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