Black Holes

Supermassive black holes that seem too large to exist in the early universe may have grown from primordial black holes formed in the first second after the Big Bang.

A mystery signal detected high in the sky above Antarctica defies current models of physics and could represent a new particle, scientists say.

"It's like looking for candlelight in close vicinity to a flashlight that's blazing toward us."

A neutron star's final moments may spark violent starquakes, monster shock waves, and even a fleeting, never-before-seen object called a black hole pulsar.

Scientists have made the most accurate predictions yet of the gravitational waves produced when two black holes fly past each other.

Every time this doomed star plunges through a supermassive black hole's accretion disk, it loses orbital energy and triggers a burst of X-rays.

Astronomers have caught a black hole far from the center of its galaxy ripping a star to shreds — offering for the first time evidence of a rogue supermassive black hole in action.

Cosmic echoes from some of the universe's most violent collisions are far more nuanced than scientists had realized, according to new research.

Using the James Webb Space Telescope, astronomers have discovered "smoking gun" evidence of a hidden feeding supermassive black hole in a distant spiral galaxy.

While it's much smaller than the largest supermassive black holes detected, it's still a whopper considering how early in the history of the universe it appeared.