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

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 ...

Using energy greater than the global nuclear weapons inventory, an impact event carved two grand canyons into the moon’s ...

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

The Grand Canyon's three Inner Corridor trails had to be shut after workers discovered dangerous chlorine gas at the Roaring Springs waterfall ...

The Vikos Gorge, a wonder of the natural world in Greece, is known as the "Greek Grand Canyon" because of its cliffs and ...

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 ...

Formed over thousands of years of erosion caused by hydrothermal activity, water and other natural forces, the Grand Canyon of the Yellowstone ... down the Yellowstone River, including the 109 ...

Carved over millions of years by the Colorado River, this awe-inspiring ... opportunities to view towering canyon walls from the water Diverse ecosystems The Grand Canyon's varying elevations ...