The Andromeda galaxy (M31) has been captured by the Chandra X-ray Telescope. See the imagery and hear a sonification of it.

Two colliding galaxies have been found to be reorganizing their dwarf satellites, potentially solving a major conundrum ...

Andromeda tilts. The galaxy is tilted at an angle of 77 degrees, with the lower part of the image closer to us. It’s a bit like looking at a fried egg from the side. Background galaxy.

This year's Perseid meteor shower is expected to reach its peak tonight — but the moon might outshine the shooting stars.