NGC 685, a smaller cousin of our Milky Way, dazzles with youthful energy as newborn stars light up its spiral arms.

New observations from NASA's Chandra X-ray Observatory and other telescopes have captured a rare cosmic event: Two galaxy ...

An international team of astronomers reports the discovery of a new ultracompact binary of the AM CVn type exhibiting ...

An international team of astronomers has discovered a tightly packed cluster of supermassive black holes dating back 10.8 ...