Galaxy merger Arp-Madore 417-391 is on display in this new image captured by the Hubble Space Telescope's Advanced Camera for ...

I/ATLAS is the third interstellar object ever discovered in our solar system. Telescope observations suggest it is a roughly 7-mile-wide (11 kilometers) comet zooming at more than 130,000 mph (210,000 ...

Comet 3I/ATLAS, the third interstellar object ever recorded, is currently passing through our solar system. Discovered on ...

The Hubble Space Telescope was originally expected to last about 15 years in orbit, before its optical surfaces became too ...

NASA's Hubble Space Telescope explores the evolution of spiral galaxy UGC 10043 through images taken 23 years apart, in 2000 ...