Newly discovered black holes in dwarf galaxies shed light on the origin of our galaxy's central supermassive black hole.

The Andromeda galaxy, our Milky Way's closest neighbor, is the most distant object in the sky that you can see with your unaided eye.

As astronomers look out at the distant cosmos, it’s only natural that they would also look inward, to the center of our own Milky Way.

Astronomers have been able to identify the widest range of elements in a relatively bright star beyond our solar system yet.

Signs of a planet transiting a star outside of the Milky Way galaxy may have been detected for the first time.

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.

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.

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

Astronomers have discovered a small black hole outside the Milky Way by looking at how it influences the motion of a star in its vicinity.

On isolated mountaintops across the planet, it is time to look at the supermassive black hole at the heart of our Milky Way galaxy.

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.

Astronomers have discovered the very first confirmed planetary system that resembles the expected fate of our solar system.

Although thousands of planets have been discovered in the Milky Way, most reside less than a few thousand light years from Earth.

Brown dwarfs aren't quite stars and aren't quite planets, and a new study suggests there might be more lurking in our galaxy than known.