Bruce Murray Space Image LibraryDevelopment of the 2018 dust storm over Gale crater, sols 1997-2085 Development of the 2018 dust storm over Gale crater, sols 1997-2085 Curiosity regularly takes pictures of the distant northern crater rim as a way to assess how much dust is in the low-altitude air. Sol 1997 shows the view on a relatively clear day. As the Mars year 34 dust storm developed, Curiosity's view of the rim vanished into dust. NASA / JPL / MSSS / Justin Cowart / Emily LakdawallaAnimation originally aligned and produced by Justin Cowart. Hot pixels and other blemishes painted out by Emily Lakdawalla.