Dust Avalanches on Mars (IMAGE) University of Arizona Caption This is a close-up of Martian terrain with dark streaks interpreted as avalanches blasted by shockwaves from a meteorite impact. Credit NASA/JPL-Caltech/The University of Arizona Usage Restrictions This visual may only be used in conjunction with reporting/posting of this news release. Image/video credit must be included exactly as indicated. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.