Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

Discover the stunning 2500-megapixel photomosaic of Andromeda, created from 600 Hubble photos, showcasing the telescope's ...

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 ...

This rare quasar with spiral arms could help astronomers understand how supermassive black holes feed and grow.

The universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous—and highly ...

Messier 31 is located 2.5 million light-years away from Earth and was a much bigger target in the sky than the galaxies ...

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 ...

These massive currents carry material on a journey through and around star-forming galaxies before they settle and form stars ...

The Andromeda galaxy, our nearest major galactic neighbor and one of the most iconic objects in the night sky, has captivated ...

That Rich was presenting the story of Edwin Hubble at the January 2025 AAS meeting was symbolic, for it was at the 33rd ...

This monumental project involved more than 600 snapshots and required over 1,000 Hubble orbits, showcasing the intricate ...

New measurements show that the expansion rate of the universe is faster than can be explained by our current understanding of ...