Explore Mars In DepthScienceMars“Happy Face” CraterMars 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 “Happy Face” CraterJanuary 1, 2000 Language english Downloads Original (368×540) Mar 11, 2024 JPEG (18.84 KB)