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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 lunar south pole. The canyons ...

CAPE CANAVERAL, Fla. (AP) — New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the lunar far side. That’s good news ...

And that debris was remarkable in that it actually carved two canyons, nearly 300 kilometers long. 20 to 25 kilometers wide and 2.5 kilometers deep. From *** scientific point of view, how they're ...