Explore Mars In DepthScienceMarsSand Dunes and Ripples in...Mars HomeFactsMars ExplorationOverviewRover BasicsMars Exploration Science GoalsMission Timeline SummaryMars MissionsMars Sample ReturnMars Perseverance RoverMars Curiosity RoverMAVENMars Reconnaissance OrbiterMars OdysseyMars Relay NetworkMore Mars MissionsMultimediaImagesVideoAudioMore ResourcesNews & FeaturesLatest Mars ArticlesThe Mars ReportNewsletter HomeMoreThe Solar System Sand Dunes and Ripples in Proctor Crater, MarsJuly 14, 2009 Credit NASA/JPL-Caltech Language english Downloads Original (2560×1920) Mar 11, 2024 JPEG (4.89 MB)