'Oddball supernova' appears strangely cool before exploding

ScienceDaily
May 5, 2021, 9:44 am123 pts
Astronomers examined a massive star two-and-a-half years before it exploded into a supernova. At the end of their lives, cool, yellow stars are typically shrouded in hydrogen, which conceals the star's hot, blue interior. But this yellow star, located 35 million light-years from Earth in the Virgo galaxy…

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