A new study suggests ancient wood floated into a cave far above the Colorado River when a meteorite-induced earthquake ...

Cutting‑edge dating reveals driftwood high in Grand Canyon caves 55,250 years ago when a meteor’s shock wave blocked and ...

Researchers have found a link between two geological events in iconic locations of the U.S. Southwest that scientists ...

Spanning 25 miles in diameter, this crater is three times the size of the Grand Canyon, making it the largest known impact site in the U.S. and the 15th largest on Earth.

A meteor may have led to the formation of the Grand Canyon, new study says - The study dives into questions surrounding how and when driftwood in Stanton’s Cave in the Grand Canyon got there ...

Geology is full of detective stories about the Earth's history, and a new paper in Geology by University of New Mexico ...

The extraordinary formations, each comparable in size to Earth’s Grand Canyon, are hidden on the far side of the moon — the side that always faces away from Earth — near the lunar south pole ...

Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which are each about the size of Earth’s Grand Canyon.