An international team of astronomers has spotted the most distant astronomical object ever: a galaxy some 13.5 billion light-years away.

Astronomers identified a number of stellar streams from past mergers years ago, and also used globular clusters to construct a timeline.

Our galaxy is a giant ‘smoothie’ of blended stars and gas but a new study tells us where the components came from.

When tiny galaxies collide with bigger ones, the bigger galaxies can strip the smaller galaxies of their dark matter which we can’t see.

The galaxy, dubbed Alcyoneus, is a large radio galaxy that spans 16.3 million light-years or roughly 150x the span of the Milky Way galaxy.

A team of German astronomers have discovered a strange new type of star covered in the by-product of helium burning.

A new study suggests the existence of a direct interaction between the elementary particles that make up the dark matter and ordinary matter

Astronomers have discovered an unusually massive black hole at the heart of one of the Milky Way’s dwarf satellite galaxies, called Leo I.

Studying the atmospheres of white dwarfs that have been “polluted” by such debris, researchers have identified exotic rock types.

If the known laws of physics hold, then a galaxy-spanning human civilization is impossible. Unless of course you can build a warp drive.

Astronomers have reported the discovery of a structure thought to be a "protocluster" of galaxies 11 billion light-years from Earth.

A planet transiting a star outside of the Milky Way galaxy may have been detected for the first time by the Chandra X-ray Observatory.

While black holes and toddlers don't seem to have much in common, they are remarkably similar in one aspect: Both are messy eaters.

Astronomers have succeeded for the first time in quantifying the proton and electron components of cosmic rays in a supernova remnant.