If wormholes, bridges between regions in spacetime, are more than just a sci-fi fantasy, researchers may have a way to detect them.

“Weather” in clusters of galaxies may explain a longstanding puzzle, according to a team of researchers at the University of Cambridge. 

Supermassive black holes and the galaxies where they reside grow in tandem, even "self-correcting" when one outpaces the other.

A new method lets researchers detect tones coming from a black hole, which also confirms Einstein's theory of general relativity.

Results support Einstein’s theory and the idea that black holes have no “hair.”

Ever since the detection of gravitational waves, researchers have been searching for the bursts of light that may accompany the collisions that cause them.

With help from next-generation particle accelerators, the approach may nail down the rate of oxygen production in the universe.

New research could resolve a debate about the identity of bright objects at the center of certain galaxies.

Researchers have discovered the first evidence of a cloaked black hole in the early universe, existing just 850 million years after the Big Bang.

New research puts Einstein's theories of relativity to the test in a unique laboratory—the black hole at the center of the Milky Way.