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

A satellite orbiting Mars has captured the best-ever images ... That is longer than the Grand Canyon, which is 277 miles (446 ...

Scientists are now using some of the newest technology on Earth to unravel the most ancient secrets about the planet Mars. Member station KUNC's Rae Solomon has the story about how artificial ...

Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which ...

The lunar canyons Vallis Schrödinger and Vallis Planck are extraordinarily deep, and scientists now know the valleys were ...

It's a vast system of chasms five times longer and 10 times wider than the Grand Canyon, and scientists think it formed in a similar way. Billions of years ago, Mars was warmer, and covered with ...

The Grand Canyon is the biggest canyon on earth: 277 miles long, 10 miles wide, and a mile deep. It contains some of the oldest exposed rock on earth, Precambrian Vishnu schist, formed 1.7 billion ...

In the afternoon, while his crew set up camp for the night, Powell would often climb into the canyon to investigate. Much has been learned about the geology of the Grand Canyon and about the ...