Rare Milky Way star cluster is packed with red supergiants 1 million times brighter than the sun
Many red supergiant monster stars lurk in a Milky Way cluster astronomers have discovered with the Gaia space telescope. The cluster, Barbá 2, could help understand why some stars become black holes.
from Space https://ift.tt/wcYhyVD
from Space https://ift.tt/wcYhyVD
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