Although the long-term effects of this interaction on the moon are unknown, "this same process should be occurring on airless, silicate-rich bodies throughout the inner solar system," she says.

The waves of damp and dry conditions suggest water is created on the moon every day, when hydrogen nuclei in the solar wind slam into oxygen-rich silicate minerals on the moon's surface.

Blast clean damaged area, previously coated with zinc silicate and prime with a two-pack zinc rich epoxy primer (containing at least 90% by weight of zinc in the dry film).