The northern sky's greatest galaxy gets its familiar name from the northern constellation where it resides, Andromeda the ...

New observations from the Hubble Space Telescope have revealed surprising activity inside the Andromeda galaxy. The data ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Gianluca Masi, Virtual Telescope Project, Background: NASA, ESA and the Hubble Heritage ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. On Dec. 15, 1612, the Andromeda galaxy was seen through a telescope for the first time by a German astronomer named Simon Marius. ...

It turns out that looming collision between our Milky Way and Andromeda galaxies might not happen after all. Astronomers reported Monday that the probability of the two spiral galaxies colliding is ...

Just how far can we see on a clear, dark night? If you’re a regular reader of this column, you know that the stars overhead lie many trillions of miles away, but these make up only a tiny fraction of ...

A star in the Andromeda Galaxy has inexplicably vanished, leaving behind a puzzling red light source that is baffling astronomers.

KOIN 6 viewer Jim Preusse caught a unique view of Monday night and Tuesday morning's northern lights from along the Oregon ...