Spanning 25 miles in diameter, this crater is three times the size of the Grand Canyon, making it the largest known impact site in the U.S. and the 15th largest on Earth.

The lunar Grand Canyon: Our moon has two gigantic basins that were carved out in just 10 MINUTES (despite being even bigger than the one in Arizona!) ...

The LRO's latest mosaic of Shackleton Crater is proof of this in action. At 12.4 miles (20 km) across, few craters visible on land on Earth even come close. Of course, we're talking about ...

Shackleton crater spans roughly 12.4 miles wide (20 km) and 2.6 miles deep (1.3 km), making it deeper than the Grand Canyon, according to the Center for Lunar Science and Exploration. Sign up for ...

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object slammed into the moon 3.8 billion years ago. CNN values your feedback 1.

But while the Grand Canyon was etched from the landscape over millions of years, these Moon valleys were carved in less than 10 minutes, according to a new study in Nature Communications.

Earth's tallest mountain, Mauna Kea, extends over 30,000 feet (about 6 miles, or nearly 10 km) from base-to-peak. Nearly a mile (1.5 km) larger than Everest by this metric, none of the other famed ...

Two gigantic canyons on the moon — both deeper than the Grand Canyon — were carved in less than 10 minutes by floods of rocks traveling as fast as bullets, a new study finds.

Underneath Antarctica’s ancient, frozen landscape lies a hidden subglacial valley larger than the Grand Canyon. The recently discovered Antarctic trench, sculpted millions of years ago, is ...

Lost and found. Climate change scientists have found one of these in Greenland. Question: How does a canyon that's 500 miles long and deep - bigger than Arizona's Grand Canyon - escape notice?