The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted by ...

Andromeda is the closest large galaxy to the Milky Way. And it is getting closer, as the two will merge in several billion ...

Astronomers are celebrating the completion of a 2.5-billion-pixel panoramic picture of the entire Andromeda Galaxy. The team includes several UC Santa Cruz researchers who made significant ...

How do images taken by the James Webb Space Telescope (JWST) appear so colorful, and where do the colors come from?