“Unexplained” –Enormous ‘Phantom’ Galaxy Discovered Hidden at Outskirts of the Milky Way: ‘Is It One of Many?’

 

 

What remains unexplained is the object’s giant size, says astronomer Sergey Koposov¬†at Carnegie Mellon University. “Normally, as galaxies lose mass to the Milky Way’s tides, they shrink, not grow.”

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