The research described in this paper gives proof of the assumption, previously made by other researchers, that blocks of CO2 ice can play a role in the creation of dune gullies on Martian dunes.

"In spring, this ice begins to warm up and sublimate. The last remnants of this ice are located on the shaded side of the dune tops, and that is where the blocks break off from once the temperature is ...

CO₂ ice blocks on Mars may dig gullies as they slide and sublimate in the thin atmosphere. In lab experiments, scientists ...