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

Michael S Turner argues that the next breakthrough in particle physics and cosmology may be just around the corner.

Could a black hole pass through our solar system at high speed? This possibility, once confined to science fiction, is becoming increasingly tangible thanks to recent observations. This theory ...

A new study published in Nature Astronomy indicates that the dense, star- and dark-matter–rich environments around supermassive black hole binaries pack on the order of a million solar masses into ...

Neutron stars harbor some of the most extreme environments in the universe: their densities soar to several times those of ...