Two gigantic canyons on the moon — both deeper than the Grand Canyon — were carved in less than 10 minutes by floods of rocks ...
New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...
New Scientist on MSN51m
Grand canyons formed on moon in minutes after colossal asteroid strikeTwo canyons that splay out from a vast asteroid crater on the moon may have been quickly formed by chains of impacts that followed the initial one ...
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