Water ice clouds on modern Mars. (IMAGE) Proceedings of the National Academy of Sciences Caption Water ice clouds on modern Mars. April, 1999 mosaic of ~10 low-orbit Mars Global Surveyor (MGS) Mars Orbiter Camera Wide Angle (MOC-WA) visible-light images, projected onto a sphere with center of view at 15°N, 90°W. White features are water ice clouds (except for the water ice polar cap at the top of the image). Credit Image credit: NASA/JPL/MSSS Usage Restrictions None 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.