Grand Canyons on the Moon Were Made in a Matter of Minutes
Two canyons near the south pole of the moon rival the Grand Canyon, both in depth and length.Unlike the sinuous chasm in Arizona, the two lunar canyons, known as Vallis…
Two canyons near the south pole of the moon rival the Grand Canyon, both in depth and length.Unlike the sinuous chasm in Arizona, the two lunar canyons, known as Vallis…