Black holes exert a tremendous influence on their surroundings, meaning that when they spin, they literally drag the very fabric of space and time around with them. That means nothing can sit still ...

The dramatic Marley Foundation Astronomy Discover Center at Lowell Observatory in Flagstaff has a rooftop viewing deck and ...

Engaging articles, breathtaking images and expert knowledge ...

Large galaxies, like the Milky Way, attract smaller galaxies. Our solar system 's cosmic neighborhood spans 100,000 ...

Insulation provided by carbon dioxide ice above the martian polar caps could explain many of the Red Planet’s ancient river features.

Averting your gaze when viewing the ringed planet can cause an optical phenomenon that might make you think twice about what ...

Friday, November 8Although the constellation Perseus is perhaps best known for housing the famous Double Cluster, it's also ...

Every constellation has something within its borders worth tracking down, if you just look hard enough. Here are five to ...

Surface features of Uranus' icy moon Miranda point to the existence of a once deep ocean, one that still may exist today.

Those who enjoy the history of the Roman Empire are well acquainted with the story of Antinous, the young man of ...

After centuries of effort by brilliant theorists, we’re left with a confusing mélange of unsatisfactory ...

Written by the former chief historian of NASA, the book examines the evolution of our cosmic understanding—from early civilizations to the present day ...