Some three billion years ago, when Earth was a sprightly ocean world dotted with protocontinents and inhabited solely by single-celled organisms, a pair of black holes spiraled together and collided ...

The order has been awarded by the Department of Atomic Energy (DAE). The observatory will be built at Aundha in Maharashtra’s ...

LIGO scientists determined that this set of waves was produced during the final moments of the merger of two black holes — 14 and 8 times the mass of the sun — to produce a single, spinning black hole ...

Add Yahoo as a preferred source to see more of our stories on Google. Installation of in-vacuum equipment as a part of the squeezed-light upgrade before Advanced LIGO’s third observing run. LIGO team ...

After a year of downtime to perform hardware upgrades, the Laser Interferometer Gravitational-Wave Observatory (LIGO) is ready for action and will turn on its twin detectors, one in Washington state ...

The LIGO Scientific Collaboration and Virgo Collaboration released a catalog of results from the first half of its third observing run (O3a), and scientists have detected more than three times as many ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. One of the most understated frontiers in all of physics is the quest ...

An artist’s conception shows gravitational waves emanating like ripples in space time as two black holes approach each other in their orbits. (Credit: T. Pyle / LIGO) It looks as if gravitational-wave ...