The long-awaited detection of gravitational waves has opened up a whole new world of astronomy. One of the key efforts is now ...

Uncover the mystery of Omega Centauri: a stellar-mass black hole is responsible for the fast movement of nearly ten million ...

The size and spin of black holes can reveal important information about how and where they formed, according to new research.

A phenomenon called gravitational lensing turned a galaxy into a "hall of mirrors of cosmic proportions," allowing for the discovery.

Telescopes like Hubble and the James Webb Space Telescope can observe some incredibly distant galaxies, stretching all the ...