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A cosmic surprise: Black hole merger may have sparked a gamma-ray burst

In November 2024, gravitational-wave detectors recorded the violent merger of two black holes billions ...
New Scientist

Gravitational waves spark hunt for cosmic strings and dark matter

Theoretical physicists have leapt upon the recent discovery of a background hum of gravitational waves permeating the entire universe, with claims that the signal could be a sign of dark matter or ...
Ars Technica

NANOGrav hears “hum” of gravitational wave background, louder than expected

Gravitational waves are ripples in the fabric of spacetime predicted by Albert Einstein’s general theory of relativity, first detected in 2015. But an expected corresponding low-frequency ...
SpaceNews

After 15 years, pulsar timing yields evidence of cosmic background gravitational waves

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 ...
PRIMETIMER

Can gravitational waves solve the Hubble tension? New cosmic measurement method explained

Scientists propose a gravitational-wave method called the stochastic standard siren to measure the Hubble constant, offering an independent way to examine the universe’s expansion and the Hubble ...
The Washington Post

I’m a physicist. Last week’s gravitational waves announcement sent me reeling.

Katie Mack is the Hawking chair in cosmology and science communication at the Perimeter Institute for Theoretical Physics and the author of “The End of Everything (Astrophysically Speaking).” When, ...
SpaceNews

A New Way Of Measuring Cosmic Expansion: Lensed Gravitational Waves

The universe is expanding; we’ve had evidence of that for about a century. But just how quickly celestial objects are receding from each other is still up for debate. It’s no small feat to measure the ...
Forbes

Gravitational Wave Background: A Very Simple Explanation

The newly detected gravitational wave background could be the result of supermassive black hole binaries that orbit each other for a few million years before merging. By now you’ll have seen the news ...
IFLScience

Cracks In The Universe: Astrophysicists May Have Found Evidence Of Cosmic Strings

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...
SpaceRef

After 15 years, pulsar timing yields evidence of cosmic background gravitational waves

Artist’s interpretation of an array of pulsars being affected by gravitational ripples produced by a supermassive black hole binary in a distant galaxy. CREDIT Aurore Simonnet for the NANOGrav ...
Science Daily

After 15 years, pulsar timing yields evidence of cosmic background gravitational waves

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 ...