Normally, the Swift satellite is searching for distant cosmic explosions. But recently it took some time to take a long look (total exposure time: 24 hours) with its ultraviolet eyes at the Andromeda...

At first glance, this latest image release from Hubble appears to be one really bizarre-looking galaxy. But actually, this is a pair of spiral galaxies that resemble our own Milky Way smashing togeth...

A galaxy cluster located about 10.2 billion light years from Earth has been discovered by combining data from NASA's Chandra X-ray Observatory with optical and infrared telescopes. The cluster, J...

M 51. Credit: NOAO We regularly report on the discovery of extrasolar planets in our galaxy, but earlier this year came news of possibly the first planet discovered outside of the Milky Way. Now com...