APM 08279-5255 is a massive black hole (quasar) that contains about 140 trillion times the amount in all of Earth’s oceans ...

A team led by University of Arizona astronomers has discovered the most distant quasar ever found, and they believe it was fully formed 670 million years ago after the big bang. Credit: Illustration ...

Observations confirm astronomers' expectation that early-Universe quasars formed in regions of space densely populated with companion galaxies. DECam's exceptionally wide field of view and special ...

The Chandra X-ray Observatory captured imagery of a galaxy that "appears to have pulled in and assimilated all of its former ...