The Royal Observatory Greenwich has narrowed the search for the Astronomy Photographer of the Year. The winners will be announced on September 17.

A distant 'exomoon' the size of Jupiter is changing how we think about the cosmos.

Astronomy Photographer of the Year 2026 shortlist features eclipses, nebulae, aurorae and Milky Way images ahead of the September winners announcement.

Looking for a sky event this week? Check out our full Sky This Week column. July 18: Comet Tempel's knife-edge tail Right as ...

"We believe that the mechanism that 'turns on' these gigantic radio emissions is linked to the formation process of galaxy ...

For the first time in history, astronomers have detected a sugar molecule floating among the gas clouds of interstellar space ...

Second only to black holes, neutron stars – incredibly dense star remnants – are the densest objects in the universe. When neutron stars collide, they create ripples in the fabric of space and time in ...

Looking for a sky event this week? Check out our full Sky This Week column. July 17: The Moon skims south of Venus Comet ...

NASA is about to launch a space observatory that could help settle some of the biggest mysteries in modern astronomy. The Nancy Grace Roman Space Telescope will study how the universe began, what it ...

The U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) has completed observations for the Very ...

Silver makes up only a minute fraction of the Sun, but its abundance carries clues about events that shaped the Milky Way.

The pictures, on the competition's shortlist, reveal the remarkable celestial objects that lie above our heads, both in deep space and closer to home ...