There Was a Giant Galaxy Near to the Milky Way Eaten by Andromeda

There Was a Giant Galaxy Near to the Milky Way Eaten by Andromeda

Scientists have long been aware of the fact that galaxies are growing in volume when they swallow up other, smaller galaxies. This process is part of the cosmic evolution. Evidence of this is the cosmic auras (halo) in which the stars of the cannibalized galaxies can be spotted, Science Alert writes. All this applies in full force for Andromeda (also known as M31) – our closest neighbor. The galaxy has a huge and virtually invisible halo of stars that is bigger than itself. For a long time, scientists thought it had come from a number of small mergers. However, thanks...