The awe-inspiring distances of the cosmos are hard to visualise, so how can we be certain we are measuring them correctly?

This stunning image dubbed 'Cosmic Owl' captures a remarkable moment in deep space, billions of light years away.

Hubble Space Telescope images of V1 (inset), which was the Cepheid variable star in the Andromeda spiral that allowed Edwin ...

Deep within the Milky Way’s core, researchers have uncovered cold gas clouds racing through a superheated galactic wind.

Astronomers want to unlock the secrets of the "Cosmic Dawn" by sending a miniature spacecraft to listen out for an "ancient ...