“Nearly four billion years ago, an asteroid or comet flew over the lunar south pole, brushed by the mountain summits of Malapert and Mouton, and hit the lunar surface,” Kring said. “The ...
A canyon is a deep, narrow valley with steep sides. Here on Earth, canyons are typically formed by long-term erosion from ...
A colossal impact billions of years ago carved out the canyons that rival the most breathtaking features here on Earth in a ...
Scientists have long thought that the South Pole-Aitken basin was formed by a shallow-angle impact, but new research suggests ...