A stunning image of interstellar comet 3I/ATLAS reveals a vibrant, segmented plasma halo, a 'luminous plasma blaze' that left ...

Galaxy mergers activate supermassive black holes, Euclid data shows, revealing more AGN in merging systems and new insights into galaxy evolution ...

A Star Trek–inspired idea by Miguel Alcubierre kicked off decades of theory and experiments as scientists pursue plausible ...

Scientists detect a 20-day wobble from a star-shredding black hole, confirming spacetime twisting predicted by Einstein.

Space scientists release jaw-dropping visuals of black hole eating star Climber charged with manslaughter after girlfriend ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from the early cosmos.

A sudden black hole flare unleashed stunning, near light speed winds that echo the Sun’s most powerful eruptions.

Scientists have confirmed that colossal collisions between galaxies trigger titanic eruptions in the centers of those ...

The cosmos has served up a gift for a group of scientists who have been searching for one of the most elusive phenomena in ...

NASA’s Fermi telescope detected a record-breaking gamma-ray burst lasting nearly seven hours. The unusual, multi-pulse ...

The longest gamma-ray burst ever observed has UNC Chapel Hill astronomers questioning the very nature of these cosmic ...

Black holes are notoriously difficult to spot unless they are active, and one type of activity is the destruction of a star, ...