Lunar Dust

Lunar regolith

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 composed of grains 1 cm in diameter or less, but is often used interchangeably. Lunar soil differs substantially in properties from terrestrial soil. Lunar dust is even finer regolith than lunar soil, with grain sizes less than one millimeter.

Dust

Dust is made of fine particles of solid matter. On Earth, it generally consists of particles in the atmosphere that come from various sources such as soil lifted by wind, volcanic eruptions, and pollution.

lunar

Adjective

1. Of, pertaining to, or resembling the Moon (that is, Luna, the Earth's moon).
2. Shaped like a crescent moon; lunate.

Noun

1. The middle bone of the proximal series of the carpus in the wrist, which is shaped like a half-moon.
2. An observation of a lunar distance (“the angle between the Moon and another celestial body”), especially for establishing the longitude of a ship at sea.

dust

Noun

1. Fine particles.

Verb

1. To remove dust from.
2. To remove dust; to clean by removing dust.