This just in: Milky Way as massive as 3 trillion suns
Heftier size puts our galaxy on par with neighboring Andromeda, implying a closer collision date. Findings also suggest Milky Way has four spiral arms.
LONG BEACH, Calif. — Hey Andromeda, you’d better watch out. Turns out your little brother, the Milky Way galaxy, isn’t so little after all. In fact, the Milky Way is just as massive, weighing in at the new estimate of 3 trillion suns, according to a new study.
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