The local universe may be expanding more slowly than previously thought, a discovery that could relieve a pesky discrepancy ...

The night sky appears perfectly still, but the universe is constantly changing in ways the human eye cannot see. By combining ...

The Vera C. Rubin Observatory has started releasing its first discoveries: including supernovae, variable stars and asteroids ...

Science in the modern era is increasingly reliant on enormous datasets and automated analysis. In astronomy, the Vera C.

Astronomers have discovered a new class of exoplanet that defies traditional categories of planetary classification. In a ...

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

It's a new window into the first star explosions.

A unique technique allowed astronomers to see the early universe as a "sea of light" and explore the effects of gravity and ...

Russia’s war has left many of Ukraine’s world-class observatories in ruins—but the besieged nation’s astronomers already have plans to rebuild and recover ...

The oldest stars in the Milky Way are forcing a fresh look at one of cosmology’s biggest arguments. If some of them are about ...

Astronomers have uncovered a hidden cosmic web of galaxies and gas by mapping hydrogen light from the early universe.

The catastrophic collision of a black hole and a neutron star sent ripples across the universe. New analysis of those ripples ...