2-kiloparsec trail of stars could reveal how dark matter shapes galaxies
A thin ribbon of stars around the ultra-diffuse galaxy UGC 9050-Dw1 may be the first globular-cluster stellar stream…
Most detailed universe simulation yet: ESA’s Euclid project maps 3.4 billion galaxies
The catalogue describes each galaxy using more than 400 properties, including brightness, shape, velocity, and star formation rate.…