Two Grand Canyon-size valleys on the far side of the moon formed within 10 minutes, scientists say
Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...
Grand Canyons on the Moon Were Made in a Matter of Minutes
Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which ...
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Geology of the Grand Canyon
In the afternoon, while his crew set up camp for the night, Powell would often climb into the canyon to investigate. Much has been learned about the geology of the Grand Canyon and about the ...