Regolith is a blanket of unconsolidated, loose, heterogeneous superficial deposits covering solid rock. It includes dust, broken rocks, and other related materials and is present on Earth, the Moon, M
Surface of asteroid 433 Eros
Alluvial gravels in Alaska
This famous image of Buzz Aldrin's footprint taken during Apollo 11 shows the fine and powdery texture of the lunar surface.
Martian sand and boulders photographed by NASA's Mars Exploration Rover Spirit
Lunar regolith is the unconsolidated material found on the surface of the Moon and in the Moon's tenuous atmosphere. Lunar soil typically refers to only the finer fraction of lunar regolith, which is
Regolith
…at the Apollo 15 landing site () averages approximately 1.35 g/cm3 for the top 30 cm, and it is approximately 1.85g/cm3 at a depth of 60 cm. The term lunar soil is often used interchangeably with "lunar regolith" but typically refers to the finer fraction of regolith, that which is composed of grains one…
Regolith collected during the 1972 Apollo 17 mission
Orange dirt found on Apollo 17, the result of volcanic glass beads