火星-水之世界为自然科学类纪录片，NationalGeographic频道2008年出品，是NGNakedScience系列其中之一　　注:DiscoveryChannel频道购买了本片的播映权,影片出版者仍是NationalGeographic频道。　　关键词：天文学太阳系火星航天器空间探测器　　OnMay25,2008,NASA'sPhoenixLanderwillentertheMartianatmosphereandlandonitspolarice-capinthelastphaseofahistoricmissiontoinvestigateMars'pastbydiggingdownintothesoilandice-somethingthathasneverbeendonebefore.ScientistshopethatthemissionwillrevealagreatdealaboutMars'geologicalhistory,butthebiggestquestiontheyseektoanswer:wasMarseverawateryworld?Andifso,couldithaveharbouredprimitiveformsoflife?ThisepisodetellsthestoryofthisincredibleNASAmissionwhileinvestigatingtheRedPlanet'swarm,wetpast.