Pulsar timing arrays exploit the extraordinary rotational stability of millisecond pulsars as a network of galactic clocks. By precisely measuring the arrival times of radio pulses over years to ...

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of "Ask a Spaceman" and "Space Radio," and author of "How t o Die in Space." Astronomers hope to use pulsars ...

When black holes and other enormously massive, dense objects whirl around one another, they send out ripples in space and time called gravitational waves. These waves are one of the few ways we have ...

A group of Chinese scientists has recently found key evidence for the existence of nanohertz gravitational waves, marking a new era in nanoHertz gravitational wave research. The research was based on ...

LIGO confirmed the existence of gravitational waves in 2015, detecting one-time perturbations of spacetime from the merger of large black holes. There should be a background of gravitational waves ...

A fuzzy smudge of light visible from the Southern Hemisphere, the Large Magellanic Cloud looks modest to the naked eye. But ...

Every 4 milliseconds, a dead star blasts a powerful beam of radiation toward our planet. Don't worry — Earth will be fine. It's the dead star's tiny companion that's in trouble. In a new study ...

On June 29, five independent teams of radio astronomers published a series of papers presenting evidence that the universe is filled with gravitational waves created by colliding supermassive black ...

The universe is humming with gravitational radiation — a very low-frequency rumble that rhythmically stretches and compresses spacetime and the matter embedded in it. That is the conclusion of several ...