An asteroid the width of Manhattan will be close enough to Earth tonight to be seen with binoculars. The good news is that the word "close" — like all things astronomical — is relative.

In this special Hubble image 23 years in the making, the sparkling spiral galaxy UGC 10043 reveals the secrets of its ...

Over 40 stars in a galaxy billions of light-years away were photographed, offering a glimpse into an era when the universe ...