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

One of the most spectacular meteor showers of the year reaches its peak this week—giving skywatchers the chance to see up to ...

Astronomers are a step closer to cracking one of the secrets of dark energy—the mysterious force believed to be causing the universe's accelerated expansion.

To get the best views, look east on Saturday night, Dec. 13, into the early morning hours of Sunday, Dec. 14, when the radiant reaches its highest point in the sky. You might expect to see some ...