Astronomers have tracked a powerful blast of radiation back to its source, finding a neutron star collision within colliding galaxies.

The catalog of gravitational waves "heard" by LIGO, KAGRA and Virgo has doubled with detections of spacetime ripples.

Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

The universe — everything in existence — is expanding every second! It's only been about a hundred years that humanity has known this, too — that most galaxies are traveling away from us and the ...

Ripples in the fabric of space-time called gravitational waves may be the key to solving the Hubble tension — one of the biggest nagging problems in physics.

The Big Bang: The moment when the universe — everything in existence — began. ... Right? Turns out, it's not quite that simple. Today, when scientists talk about the Big Bang, they mean a period of ...

Researchers have confirmed three objects spotted with the James Webb Space Telescope in the early universe are galaxies brimming with unexpectedly old stars. Credit: NASA-GSFC / Adriana M. Gutierrez ...

Now physicists from the University of Washington are taking a big swing at answering that question. All matter exerts gravitational force. The more mass the object has, the greater the force. Yet, a ...

Lead Astronomer at the James Webb Australian Data Centre, Swinburne University of Technology Deep observations from the James Webb Space Telescope (JWST) have revealed an exceptionally large galaxy in ...