Galaxies like the Milky Way grow by merging with smaller galaxies over billions of years, unlike dwarf galaxies, which have long been thought to lack the heft to attract mass and grow in the same way.

The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...

A team of astronomers led by University of Arizona researcher Catherine Fielder captured the most precise photographs of a small galaxy and its surroundings re ...

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 ...

According to scientists, there could be more black holes in the universe than previously thought. Researchers reckon ...