Astronomers have found an extra-low hum rumbling through the universe. The discovery, announced today, shows that extra-large ripples in space-time are constantly squashing and changing the shape of space. These gravitational waves are cousins to the echoes from black hole collisions first picked up by the Laser Interferometer Gravitational-Wave Observatory (LIGO) experiment in 2015.
![An Enormous Gravity ‘Hum’ Moves Through the Universe An Enormous Gravity ‘Hum’ Moves Through the Universe](https://search.ai.wiki/wp-content/uploads/2023/06/an-enormous-gravity-hum-moves-through-the-universe.webp)