When we look up at the night sky, most of us see stars, most of which are relatively close: less than 5,000 light-years from ...

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 ...

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 ...

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

Astronomers have long believed that our Milky Way will eventually collide with the Andromeda galaxy. A new study suggests that we might escape that fate. The spiral Andromeda galaxy is our closest ...

Earlier studies have claimed to find evidence of extragalactic planets in the Andromeda galaxy. Other astronomers were skeptical about these detections, too.

Astronomers used the motion of stars to reconstruct a galactic collision that happened 2 billion years ago at the nearest neighboring large galaxy.

Because it is set in a brand new galaxy, Andromeda will feature plenty of new planets to explore. The several we have already seen are diverse and beautiful to behold.