Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which are each about the size of Earth’s Grand Canyon. By Kenneth Chang ...

Vallis Schrödinger and Vallis Planck. NASA / SVS / Ernest T. Wright It didn’t take long for the moon to get its grand canyons. Vallis Schrödinger and Vallis Planck are two long channels near ...

The orbiter provided insights into two lunar canyons: Vallis Schrödinger and Vallis Planck. Vallis Schrödinger stretches 167 miles (270 km) long and nearly 1.7 miles (2.7 km) deep. Vallis Planck ...

Sprouting off it are two canyons — called Vallis Schrödinger and Vallis Planck — each comparable in size to the Grand Canyon here on Earth. These were formed when debris, thrown up by a ...