India Blount posted an update in the group
Discovery 1 month, 1 week ago
UMa3/U1, 20 Ly Wide With ~60 Stars And 16 Solar Masses, May Be The Smallest Dark-Matter Galaxy Or An 11B-Yr-Old Star Cluster; Dynamics Suggest The Latter, Pending Future Data. Meanwhile, Andromeda XXXV, 3M Ly From Earth, & A Satellite Of Andromeda Galaxy, Is Confirmed As The Smallest Known Dwarf Galaxy, Defying Early-Universe Destruction.
Did astronomers just discover the smallest galaxy in the universe? | Live ScienceA mysterious cluster of 60 stars may be just another Milky Way star cluster, or it may be one of the smallest galaxies ever seen.