Most small galaxies that stopped making new stars in the early universe never resumed operations. Something caused their ...

The "P" in Leo P refers to "pristine," because the galaxy has so few chemical elements besides hydrogen and helium. "Leo P ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

Evaluating galaxy types allows astronomers to plot the fine details of galaxy evolution, and some galaxies rich with dark matter provide further opportunities for astronomers to understand this ...

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 ...