The catalog of gravitational waves "heard" by LIGO, KAGRA and Virgo has doubled with detections of spacetime ripples.

When space telescopes blazed with high-energy radiation for hours earlier this year, astronomers suspected that they were witnessing something special. The cosmic flash GRB 250702B was no ...

Detecting supermassive black holes just before their merger would lead to significant advances in astrophysics. To achieve this, a new innovative approach combines the study of the gravitational ...

Scientists report over 100 new gravitational wave detections, doubling the known catalog of black hole and neutron star mergers, providing new data on extreme cosmic collisions.

A subtle gravitational-wave “hum” from merging black holes may help settle the cosmic fight over how fast the universe is ...

In the depths of the universe, where black holes collide and neutron stars crash, invisible ripples in spacetime are sent ...

Physicists have detected the biggest ever merger of colliding black holes. The discovery has major implications for researchers’ understanding of how such bodies grow in the Universe. “It’s super ...

A pair of distant cosmic black hole mergers, measured just one month apart in late 2024, is improving how scientists understand the nature and evolution of the most violent deep-space collisions in ...

Understanding how galaxies grow has long stood as one of astronomy’s core challenges. Over time, scientists have gathered evidence that galaxy mergers matter. When two galaxies move close, gravity can ...

Scientists have simulated, for the first time, the merger of two black holes of vastly different sizes, with one mass 100 times larger than the other. This extreme mass ratio of 100:1 breaks a barrier ...

LIGO-Virgo-KAGRA detects two black hole mergers with rare spin patterns, offering evidence for hierarchical formation and testing Einstein's theory. Gravitational waves are “ripples” in space-time ...