Researchers at Hiroshima University have developed a realistic, highly sensitive method to detect the Unruh effect—a ...

Mathematical quirks of our universe have led some cosmologists wonder whether the cosmos was actually born in a black hole.

On September 14, 2015, a signal arrived on Earth, carrying information about a pair of remote black holes that had spiraled ...

As a massive black hole located 55 million light-years from Earth, the black hole at the center of M87 has a mass equivalent ...

Gravitational-wave astronomy has exploded since 2015, capturing hundreds of black hole and neutron star collisions. With ever ...

Is time something that flows — or just an illusion? Exploring space-time as either a fixed “block universe” or a dynamic fabric reveals deeper mysteries about existence, change, and the very nature of ...

The first-ever detection of gravitational waves was made 10 years ago today (Sept. 14). In celebration, Space.com takes you ...

The observatory is one of two in the United States funded by the National Science Foundation with its counterpart, LIGO ...

We suggest ball lightning does not fall because of the gravitational force experienced by ball lightning. We show that this ...

"GW250114 is the loudest gravitational wave event we have detected to date; it was like a whisper becoming a shout." ...

An exceptionally loud collision between two black holes has been detected by the LIGO gravitational wave observatory, ...

Astronomers detected in unprecedented detail a collision between two black holes. Their observations confirm predictions made by Albert Einstein and Stephen Hawking.