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

The energy to produce the grand canyons on the Moon is about 130 times larger than the energy in the global inventory of ...

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power of the Colorado River. Close to the ...

The Grand Canyon is one of the most iconic natural wonders in the world ...

A new book from the Palm Springs Preservation Foundation examines the architecture and development of the Indian Canyons ...

Best things to do in metro Phoenix this month include the WM Phoenix Open, a hoop-dancing championship and an international ...

A heartbreaking accident at Nevada's Red Rock Canyon has taken the life of 30-year-old Micah Manalese, a passionate rock ...