Linear gullies on a dune in Matara Crater, Mars, Red and white arrows point to pits. Credit: NASA/JPL/University of Arizona
Winter temperatures on the Red Planet sublimate CO2 from a gas to a solid. These solid carbon dioxide blocks are then thought responsible for making gullies and furrows on Mars’ landscape, based on innovative lab experiments. Researchers millions of kilometres from Mars lab-based experiments on sublimation suggest the same process is responsible for altering the appearance of sand dunes on Mars. Lauren Mc Keown said: “We’ve all heard the exciting news snippets about the evidence for water on Mars...
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