News Physics

Gravitational waves from a ringing black hole support the no-hair theorem

General relativity suggests the spacetime oddities can be fully described by their mass and spin

black hole rings

After two black holes collide and meld into one, the new black hole “rings” (illustrated), emitting gravitational waves before settling down into a quiet state.

M. Isi/MIT, NASA

By Emily Conover

- More than 2 years ago

For black holes, it’s tough to stand out from the crowd: Donning a mohawk is a no-no.