Cosmic testbed A computer simulation of the black-hole collision that produced the first gravitational wave signal to be detected, GW150914. (Courtesy: Simulating eXtreme Spacetimes (SXS) project/LIGO ...

Stephen Hawking’s 50-year-old theorem on how black holes merge together has been successfully tested thanks to huge advances in gravitational wave astronomy, which helped astronomers catch the waves ...

In a groundbreaking discovery, the LIGO-Virgo-KAGRA collaboration detected the loudest gravitational wave ever observed, confirming Stephen Hawking’s area theorem on black holes. The event, GW250114, ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration imagines GW250114, a powerful collision between two black holes observed in gravitational waves by the LIGO ...

There are certain rules that even the most extreme objects in the universe must obey. A central law for black holes predicts that the area of their event horizons — the boundary beyond which nothing ...

More than 50 years ago, acclaimed theoretical physicist Stephen Hawking theorized that the area of a black hole could never decrease. On Sept. 10, the LIGO-Virgo-KAGRA Collaboration, a global network ...

This artwork imagines the ultimate front-row seat for GW250114, a powerful collision between two black holes observed in gravitational waves by the US National Science Foundation LIGO. It depicts the ...

Back in 1971, the late physicist Stephen Hawking made an intriguing prediction: The total surface area of a black hole cannot decrease, only increase or remain stable. So if two black holes combine, ...

Researchers celebrate 10th anniversary of gravitational wave discovery, announce verification of a Hawking theorem. Two black holes spiral together and violently merge in this simulation of an event ...

An eon ago, when only microbes dwelled on Earth, a pair of black holes some 1.3 billion light-years beyond the solar system spiraled toward each other until they crashed. The two became one big black ...