About 35 million years ago, an asteroid struck the ocean off the East Coast of North America, leaving behind a massive impact ...

A canyon is a deep, narrow valley with steep sides. Here on Earth, canyons are typically formed by long-term erosion from ...

The far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...

Two gigantic canyons on the moon — both deeper than the Grand Canyon — were carved in less than 10 minutes by floods of rocks ...

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

Arizona's magnificent Grand Canyon is painstaking result of the Colorado River's current wearing away the planet's surface ...

A new study suggests the craters were dug out by rocky debris after the lunar surface was struck around 3.8 billion years ago ...

Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which ...

The Earth's Grand Canyon took millions of years to carve, but the moon's grand canyons took about ten minutes.