Impact Spewed Debris Away from the Moon’s South Pole

Impact Spewed Debris Away from the Moon’s South Pole

About 3.81 billion years ago, a giant impactor rocked the Moon’s south pole. It formed the Schrödinger impact basin, which remains clearly visible today. Astronomers recently found that two extremely deep and long valleys extending away from the crater were formed rapidly by pieces of rock flung outward during the impact. The debris carved valleys “as big as the Grand Canyon on Earth. But instead of being formed during millions of years, they we…