Ancient Lost Worlds and Hidden History. On location videos made by author and adventurer Brien Foerster exploring Peru, ...

From the ancient pyramids in Egypt to the grand stone heads of Easter Island to the Stonehenge ... such as Topock Maze and ...

A new study suggests ancient wood floated into a cave far above the Colorado River when a meteorite-induced earthquake ...

Researchers have found a link between two geological events in iconic locations of the U.S. Southwest that scientists ...

W hen an asteroid made Meteor Crater in northern Arizona, it did more than leave the Earth’s best preserved impact crater.

Eyewitness video from Friday (July 11) shows thick smoke columns billowing from the White Sage Fire spreading across the North Rim of Arizona's Grand Canyon.

On his first trip to the Grand Canyon Star Party, Dave Eicher joins thousands for a week of lectures, observing, and cosmic wonder.

It's the first time in franchise history that the same player had hit a grand slam in back-to-back games for the Giants, according to MLB's Sarah Langs.

For the second night in a row, San Francisco Giants utility man Casey Schmitt came through with a grand slam against the rival Los Angeles Dodgers.

Grand Canyon Skywalk is ranked #17 out of 20 things to do in Grand Canyon National Park. See pictures and our review of Grand Canyon Skywalk.

Grand Canyon Caverns and restaurant have opened after being closed for nearly 3 years. Here's why it closed and how to go into the Grand Canyon caves.