The Andromeda galaxy is also known as Messier 31. It is a spiral galaxy located about 2.5 million light-years from Earth. On ...

Astronomers have long thought that the Milky Way is headed for an inevitable crash with its neighbor, Andromeda. But a new ...

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor. Composed by NASA and international space partners, the image combines data from ...

Named after the agency’s first chief astronomer, the high-tech observatory is expected to launch in 2027 and will feature a field of view 100 times larger than that of the Hubble Space Telescope.

A collision between our Milky Way galaxy and its largest neighbor, the Andromeda galaxy, predicted to occur in about 4.5 billion years, has been anticipated by astronomers since 1912.

Our neighboring Andromeda Galaxy (Messier 31, or M31) appears to sport a lopsided arrangement of satellite galaxies that defy scientific models, stumping astronomers who are also trying to figure ...

Our Milky Way galaxy is a cannibal.. It has grown by consuming other galaxies.Yet, it too, may be destined to collide and merge with an even bigger galaxy: Andromeda.Though galaxy collisions are ...

Still, if you get to see the Andromeda Galaxy, consider that you are seeing light 2.5 million years old, dating from when the human species was just beginning to establish a fragile foothold on ...