More than a century later, scientists are still proving Albert Einstein right. The famed physicist’s revolutionary general ...

A best-yet measurement of one of general relativity’s most mind-boggling effects is “another feather in Einstein’s cap” ...

When two black holes orbit each other, they eventually spiral inward and collide in one of the most violent phenomena in the ...

A peer-reviewed paper published in The Astrophysical Journal Letters argues that black holes gain mass in step with the ...

When two black holes orbit each other, they will eventually spiral inward and collide in one of the most violent phenomena in ...

The question of how gravity interacts with the quantum world has long perplexed physicists, but a non-quantum theory of space ...

X-Men ‘97 Season 2 is streaming on Disney+ now, with all three premiere episodes live. The Critics’ Choice Award–winning ...

One foundational part of astrophysics concerns how stellar mass black holes form. When a star several times more massive than ...

The letter was sent by Karl Schwarzschild, an artillery lieutenant, director of the Astrophysical Observatory in Potsdam, and ...

Physicists Daniel Jampolski and Luciano Rezzolla have published a peer-reviewed paper in Physical Review D describing, for ...

Some of the hardest questions in cosmology begin where the usual math gives up. Push Einstein’s theory far enough back toward the Big Bang, and the equations run into a singularity, a point where ...

Black holes and gravastars take centre stage in a new study that proposes an alternative fate for collapsing massive stars.