“Enormous Ghost Galaxy” –Hidden In the Milky Way’s ‘Zone of Avoidance’

Milky Way Galactic Center

 

An enormous ‘ghost’ galaxy, believed to be one of the oldest in the universe, was detected lurking on the outskirts of the Milky Way in November of 2018 by a team of astronomers who discovered the massive object when trawling through new data from the European Space Agency’s Gaia satellite. The object, named Antlia 2, avoided detection thanks to its extremely low density as well as a perfect hiding place in the Zone of Avoidance, behind the shroud of the Milky Way’s disc–a region full of dust and an overabundance of bright stars near the galactic center.

(more…)

“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.”

(more…)