Moon's Grand Canyon Formation
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grand canyonsSmithsonian Magazine
•Entertainment
Entertainment
Two of the Moon's Grand Canyons Were Formed in Just Ten Violent Minutes, New Study Suggests
86% Informative
Astronomers say a comet or asteroid rammed into the moon 3.8 billion years ago .
Vallis Schrödinger and Vallis Planck are two long channels near the lunar south pole.
They suggest the canyons formed after a 15-mile -long comet hit the lunar surface with 130 times the energy of nuclear weapons.
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