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 out ...

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 ...

Astronomers have long known that the Andromeda galaxy, aka Messier 31, a swirling city-state of a trillion stars — plus all the accouterments of gas, dust, dark matter and black holes — is rumbling ...

In this episode, Dave Eicher invites you to observe one of the most famous deep-sky objects, the Andromeda Galaxy, also known as Messier 31 (M31). Named for its location in the constellation Andromeda ...

NASA’s Spitzer Space Telescope has captured a stunning infrared view of Messier 31, the famous spiral galaxy also known as Andromeda. Andromeda is the most-studied galaxy outside our own Milky Way, ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA recently released images of the Andromeda galaxy, an empire of stars, that is the Milky Way galaxy's closest neighbor. This ...