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 ...
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 ...
Yale Environment 360

Astrophysicists present first evidence of gravitational wave ‘background’

Researchers have found the first direct evidence of a “background” of gravitational waves in the universe — a sign that gravitational waves from slowly merging pairs of supermassive black holes, or ...
Inverse

Scientists Just Heard the Hum of Giant Black Holes — Here's How They'll Pinpoint the Source

Astronomers just discovered a background “hum” of low-frequency gravitational waves constantly rippling through the universe — but what’s next? When two galaxies merge, the supermassive black holes at ...
New Scientist

Gravitational waves produce a background hum across the whole universe

The fabric of the universe is constantly rippling, according to astronomers who have discovered a background buzz of gravitational waves. These waves may be produced by supermassive black holes ...
The Hindu

What does the universe sound like? Scientists describe cosmic ‘background hum’

Scientists on Wednesday unveiled evidence that gravitational waves, the ripples in the fabric of space-time predicted by Albert Einstein more than a century ago, are permeating the universe at low ...