But Arizona isn't the only place where an ambitious explorer can find a Grand Canyon. NASA’s Lunar Reconnaissance Orbiter has snapped pictures of two gigantic basins on the lunar surface.

A visitor nearly fell to her death while taking photos at the Grand Canyon after she stepped backward without looking. The young woman was taking pictures of a friend when she moved back to get a ...

The Grand Canyon is the biggest canyon on earth: 277 miles long, 10 miles wide, and a mile deep. It contains some of the oldest exposed rock on earth, Precambrian Vishnu schist, formed 1.7 billion ...

Grand Canyon forward Lok Wur goes to the basket against Maryland center Derik Queen (25), guard Rodney Rice (1) and guard ...