Lunar rocks are famously dry. They contain almost none of the volatile elements that easily escape into space, such as ...

Apollo lunar samples show how space weathering alters the Moon’s surface over time, affecting ultraviolet light reflection and interpretation of Lunar Reconnaissance Orbiter data.

"This supports the theory that a planet collided with early Earth and the high-energy impact resulted in the formation of the moon." Some of Earth's oldest rocks buried deep in Western Australia may ...