Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

A midair collision at the Grand Canyon killed over 100. The disaster partially led to the start of the FAA and changed air traffic control laws.

The Earth's Grand Canyon took millions of years to carve, but the moon's grand canyons took about ten minutes.

The far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...

The daredevil skydiver believes his stunt will revolutionize and offer a safer alternative to wingsuit flying.

After you've admired the Grand Canyon from the hiking trails (or even from the air on a helicopter tour), enjoy a new vantage point on a Colorado River rafting tour. Options range from the family ...

Plan a winter trip to the Grand Canyon with our winter guide to the Grand Canyon. Don't let a little snow keep you from ...

Price: From $368 per person Duration: About 10 hours This adventure begins on the Las Vegas Strip, where passengers board an air-conditioned bus and head to the West Rim of Grand Canyon National Park.

What was the deadliest plane crash in Arizona? The Grand Canyon mid-air collision was among the first commercial airline incidents to result in over 100 fatalities. On June 30, 1956, a United ...

A tragic crash near the Ronald Reagan Airport in Washington left 67 dead after a commercial airliner and Army helicopter collided in midair on Wednesday night. Midair collisions are less common ...