“We can tell it’s got this big central bulge of older stars and a star-forming disk that’s not as active as you might expect given the galaxy’s mass.” So, Andromeda appears to be frozen ...

"We can tell it's got this big central bulge of older stars and a star-forming disk that's not as active as you might expect given the galaxy's mass." Astronomers refer to the Andromeda Galaxy as M31 ...

Andromeda has come a long way since its launch, and its improved gameplay and deep connections to the franchise make it worth ...

A nebula that neighbors the Milky Way galaxy happens to be a powerhouse of forging stars, "a bouquet of thousands of stars in ...

Hubble observations of the galaxy’s age, mass of stars and heavy-element abundance ... our latest southern half observations," said Chen. "Andromeda's a train wreck — it looks like it has ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

The Andromeda Galaxy, also known as Messier 31 or M31 ... Hubble can only detect stars that are brighter than our Sun, and many low-mass stars fall below its sensitivity threshold.

Astronomers spent a decade compiling this special image with the Hubble Space Telescope and then stitched together 600 photos ...