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 17: The Moon skims south of Venus Comet ...

"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 ...

A giant planet had been hiding inside one of astronomy’s most closely studied planetary systems, concealed by a bright disk of cosmic dust. Webb revealed Beta Pictoris d through atmospheric traces of ...

The solar system’s smallest planet comes to a standstill this afternoon, ending its current retrograde path and beginning to ...

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

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 ...

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 ...

The Bullet Cluster is considered important evidence for the existence of dark matter. Now a research team believes it can explain its peculiarity differently.