The merger wasn’t just the biggest ever, but also an event so rare that it challenges existing models for black hole genesis.

The largest black hole collision ever recorded has scientists' jaws on the floor — and scratching their heads.

The LIGO Hanford Observatory near the Tri-Cities and its twin in Louisiana detected ripples of time and space passing through ...

Gravitational waves are unlocking the secrets of the universe, and scientists have just made a groundbreaking discovery.

L ast month, work began on the world’s first space-based gravitational wave detector. The European Space Agency and partner aerospace companies are developing orbiting, detector spacecraft to observe ...