Sand flow theory could explain water-like streaks on Mars
(PHYSorg.com Space & Earth)

(Phys.org)-A team of researchers from France and the Slovak Republic has proposed a theory to explain the water-like streaks that appear seasonally on the surface of Mars, which do not involve water. In their paper published in the journal Nature Geoscience, the team describes their theory as instances of sand avalanches caused by sunlight with resulting changes to shadowing.