New details have been discovered about M87*, the first black hole ever photographed, revealing its plasma, its brightness and ...

Hypervelocity stars (HVSs) were first theorized to exist in the late 1980s. In 2005, the first discoveries were confirmed.

Researchers said on Thursday that they had discovered twin-lobed radio jets they suspect were formed when the universe was ...

Rapid X-ray oscillations detected near the innermost orbit of a supermassive black hole could indicate the presence of a nearby orbiter such as a white dwarf ...

CAPE CANAVERAL, Fla. (AP) — Telescopes around the world have spotted a monster radio jet streaming from a quasar dating back ...