Before our minds start to reel at these scales, let's return to the Andromeda Galaxy and examine it from our vantage point on the dust-grain planet we call Earth. The remarkable thing is that the ...

Dozens of dwarf galaxies swarming ... the same orbital plane around the Andromeda galaxy and form the dwarf galaxies there, a bit like moons forming around a planet. However, another team of ...

Astronomers at the University of Michigan have discovered a new satellite of the Andromeda Galaxy (M31), the Milky Way’s closest major galactic neighbor, and it has broken the record for the ...