Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...

Astronomers have uncovered a gargantuan black hole that appears to sit almost alone in space, with hardly any stars around it ...

A supermassive black hole in a distant disk galaxy is behaving in a way that defies expectations, carving out a graceful S in ...

Astronomers have spotted a mysterious cosmic object that could be the lightest black hole or the heaviest neutron star ever discovered — or something completely new to science. The unknown object, ...

An object near the supermassive black hole at the center of the Milky Way galaxy has drawn the interest of scientists because it has evolved dramatically in a relatively short time. A new study ...

A graphic showing an object (in red) as it approaches a black hole. In the center of our galaxy, the black hole's intense gravity is stretching apart this cloud of gas and dust, dubbed "X7." Credit: W ...

Astronomers have discovered a mysterious unknown object in our galaxy that could be a breakthrough in the study of black holes. The “extremely dense remnant of a collapsed star” lies about 235,000 ...

Why they're black: Their gravitational pull is so extreme that even light can't escape Black holes are places where gravity is so powerful that nothing — not even light — can escape. Rather than being ...

Orbits of the G objects at the center of our galaxy, with the supermassive black hole indicated with a white cross. Stars, gas and dust are in the background. Credit - Anna Ciurlo, Tuan Do/UCLA ...

BUFFALO, N.Y. — Imagine the formation of a black hole and you’ll probably envision a massive star running out of fuel and collapsing in on itself. Yet the chaotic conditions of the early universe may ...

Astronomers have spotted the brightest known object in the universe, and it’s a quasar powered by the fastest-growing black hole on record, according to a new study. Initially classified as a star, ...

An international team of astronomers have found a new and unknown object in the Milky Way that is heavier than the heaviest neutron stars known and yet simultaneously lighter than the lightest black ...