E-Mail IMAGE: An SwRI-led study identifies plumes of airborne dust emanating from sources inside gullies at Mars' Russell crater megadune in the Martian spring. The plume phenomena support the hypothesis that CO2... view more Credit: NASA/JPL/Malin Space Systems (CTX) & NASA/JPL/University of Arizona (HiRISE)] SAN ANTONIO -- Feb. 24, 2021 -- A Southwest Research Institute® (SwRI®) scientist examined 11 Mars years of image data to understand the seasonal processes that create linear gullies on the slopes of the megadune in the Russell crater on Mars. In early spring images, captu...