mars dust

From Steve Baker, Quora: “Learning ‘dust control’ is going to be important for Mars missions … Mars dust is more abrasive than Earthly sand but not as bad as Moon dust … but Mars dust adds the extra joy of being poisonous.” Dust grains below.

Namib sand dune (downwind side) on Mars (Curiosity rover; December 17, 2015).
https://commons.wikimedia.org/wiki/File:PIA20281-MarsCuriosityRover-NamibSandDune-DownwindSide-20151217.jpg