A colossal impact billions of years ago carved out the canyons that rival the most breathtaking features here on Earth in a ...
Studying the moon also could reveal what conditions were ... brushed by the mountain summits of Malapert and Mouton, and hit the lunar surface,” Kring said. “The impact ejected high-energy ...
About 3.8 billion years ago, two massive canyons likely formed on the moon in a span of less than 10 minutes, according to ...