The Moon has a reputation as a frozen, silent world, but a growing body of evidence suggests it is still shifting and straining deep below the surface. From long scarps that wrinkle the crust to fresh landslides on crater walls,

KREEP is believed to have formed during the final cooling phase of the moon, when radioactive elements built up in the space between the moon's newly formed mantle and crust. Studying these elements more closely could help shed light on several mysteries surrounding this period of lunar evolution, including why the crust on the moon's far side is thicker than its visible near side.

Earth’s atmosphere is slowly leaking into space, and new research shows some of it reaches the Moon, where it may be preserved in lunar soil.

The Moon is gradually drifting away from Earth at a rate you could measure with a ruler if you waited […]