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# gravitational waves

## Latest Articles

### Physicists Argue That Black Holes From the Big Bang Could Be the Dark Matter

It was an old idea of Stephen Hawking’s: Unseen “primordial” black holes might be the hidden dark matter. A new series of studies has shown how the theory can work.

### How the Bits of Quantum Gravity Can Buzz

New calculations show how hypothetical particles called gravitons would give rise to a special kind of noise.

### To Make the Perfect Mirror, Physicists Confront the Mystery of Glass

Sometimes a mirror that reflects 99.9999% of light isn’t good enough.

### ‘Radical Change’ Needed After Latest Neutron Star Collision

A recent neutron star merger has defied astronomers’ expectations, leading them to question longstanding ideas about neutron stars and the supernovas that create them. “We have to go back to the drawing board.”

### A Black Hole So Big It ‘Should Not Exist’

Researchers have confirmed rumors of a black hole collision that challenges our ideas about how black holes form.

### To Make Two Black Holes Collide, Try Three

How do black holes merge and make gravitational waves? Maybe with a little help from their friends.

### New Studies Rescue Gravitational-Wave Signal From the Noise

Two independent papers vanquish lingering doubts about LIGO’s historic discovery of gravitational waves.

### A New Test for the Leading Big Bang Theory

Cosmologists have predicted the existence of an oscillating signal that could distinguish between cosmic inflation and alternative theories of the universe’s birth.

### Mathematicians Disprove Conjecture Made to Save Black Holes

Mathematicians have disproved the strong cosmic censorship conjecture. Their work answers one of the most important questions in the study of general relativity and changes the way we think about space-time.