How astronomers used gravitational lensing, a space-time trick predicted by Einstein, to detect a black hole measuring 30 billion times the mass of the sun.

Predicted by Einstein and dismissed as undetectable, gravitational waves were finally heard in 2016. Now, with observatories ...

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

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

Astronomers in Australia picked up a strange radio signal in June 2024 — one near our planet and so powerful that, for a ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...

Scientists have discovered the farthest-ever 'mini-halo,' a sea of charged particles around a distant galaxy cluster that ...

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

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

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is ...