Astronomers have made a surprising discovery that challenges current theories of galaxy formation. A colossal disk-shaped ...

A strange energy source at the center of the Milky Way may be a new type of dark matter. Scientists found that hydrogen gas ...

The XRISM collaboration has discovered flows of hot gas in the core of the Centaurus Cluster. By comparing state-of-the-art X ...

Scientists used XRISM to detect hot gas flows in Centaurus Cluster, proving that galaxy collisions cause gas movement and ...

Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

The researchers propose that this ejection resulted from the collision of two galaxies, causing their central black holes to ...

By studying Andromeda's motion through telltale signs from the light it emanates, astronomers first predicted back in 1912 ...

An unusual elliptical galaxy with a history of absorbing smaller galaxies appears to be approaching its next target.

A Swarm of Dwarf Galaxies Buzz Around Our Milky Way's Twin Imagine the Milky Way and Andromeda as two massive aircraft ...

A supermassive black hole that doesn't appear to be where we would expect seems to be travelling at more than a thousand ...