By identifying clouds in data collected by NASA’s Mars Reconnaissance Orbiter, the public can increase scientists’ understanding of the Red Planet’s atmosphere.

The map, to be released in batches over six months, covers the vast majority of the planet, revealing dozens of minerals found on its surface.

Among the missions are InSight, Mars Reconnaissance Orbiter, Mars Odyssey, and Curiosity, all of which have been critical to expanding our understanding of the Red Planet.

Caltech researchers used the Mars Reconnaissance Orbiter to determine that surface water left salt minerals behind as recently as 2 billion years ago.