The Schrödinger crater, located near the southern pole, is about 312 km (193 mile) wide and 4.5 kilometers (2.7 mile) deep. It was formed when an unknown object hit the Moon some four billion ...

While Earth's canyon was formed by the Colorado River over six to seven million years, the researchers say these were carved out in just 10 minutes. The moon's canyons stretch out from the ...