When two massive objects – like black holes or neutron stars – merge, they warp space and time. Mark Garlick/Science Photo Library via Getty Images After a three-year hiatus, scientists in the U.S.

After a three-year hiatus, scientists in the U.S. have just turned on detectors capable of measuring gravitational waves—tiny ripples in space itself that travel through the universe. Unlike light ...

Are merging black holes more common than we thought?

On May 24, scientists at the Laser Interferometer Gravitational-Wave Observatory (LIGO) began an 18-month campaign to detect the most distant collisions between black holes and neutron stars ever ...

Seven years ago, researchers with the Laser Interferometer Gravitational-Wave Observatory (LIGO) reported the first detection of gravitational waves. Now, the list of gravitational wave candidates ...

After a prolonged absence from the gravitational-wave-detection scene, the massive LIGO project is back up and running. The Laser Interferometer Gravitational-Wave Observatory (LIGO) works in ...

A specialist checks the alignment of a test beam at the Laser Interferometer Gravitational-wave Observatory. (National Science Foundation Photo) After three years of upgrading and waiting, due in part ...

After a whirlwind tour of press conferences, parties and awards following their Feb. 11 announcement of the world’s first direct detection of gravitational waves, the team of scientists at the Laser ...

The best place to observe the stars is among them, which is why Hubble and the James Webb Space Telescope have been deployed outside Earth's murky atmosphere. At least, that's the case when you're ...

On April 25, 2019, the LIGO Livingston Observatory picked up what appeared to be gravitational ripples from a collision of two neutron stars. LIGO Livingston is part of a gravitational-wave network ...