Since Galileo first observed them through his telescope in the early 1600s, sunspots have fascinated scientists.

Astronomers have constructed telescopes of every kind - massive observatories designed to pick up faint traces of light across space.

Here's everything to know about the James Webb Space Telescope, and what it captured on its three-year anniversary observing ...

June 22 marks the 350th anniversary of the Royal Observatory Greenwich, the home of the historic Prime Meridian that is considered by many to be the birthplace of modern astronomy. To celebrate, we're ...

Dr. Caitlin Casey, an observational astronomer, has recently joined the physics department at UC Santa Barbara. She co-leads the C.O.S.M.O.S. collaboration — a project distinguished by its deep ...