Gravitational waves stretch and squeeze the fabric of space and time itself. When space/time is squeezed, pulsar pulses ...

One of the most perplexing discoveries in modern astronomy has been finding supermassive black holes, some weighing billions ...

Supermassive black holes usually lurk unseen, but when an unlucky star drifts too close they ignite titanic outbursts ...

"This work is a step toward understanding how quantum mechanics and gravity work together, a major unsolved problem in ...

A supermassive black hole located 1.2 billion light-years away shows signs of intense activity. Observations reveal matter ...

And, scientists with the National Aeronautics and Space Administration (NASA) have detected what they like to call a ...