Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

Galaxies like our Milky Way grew through cascading mergers of smaller galaxies that began billions of years ago. The ancient ...

Some galaxies that should have ceased forming stars long ago are defying expectations. Anew theory proposes the existence of a third galactic category — red star-forming galaxies — which could ...

If you look across space with a telescope, you'll see countless galaxies, most of which host large central black holes, ...