Surveying nearby galaxies in the process of merging with other galaxies, astronomers have identified massive, dense star ...

The galaxy cluster PSZ2 G181 was recently observed by the Chandra X-Ray Observatory, revealing two separate clusters that had ...

A computer simulation shows how two neutron stars of unequal mass merge, form a black hole and spit out a jet of high energy matter.

Astronomers have just made an incredible discovery: a glowing cloud of energetic particles that stretches nearly 20 million ...