美火星探测器成功升空前往火星探索生命—NASAon10Junelaunchedthefirstoftwogolf-cart-sizeroversthatwillrambleacrosstherocky,redsoilofMarsanddrillforevidencethattheRedPlanetoncehadenoughwatertosupportlife.Therover,namedSpirit,liftedoffaboardaBoeingDeltaⅡrocketontheseven-monthjourneytoMars.Movingonsixwheels,theroverwillactasroboticgeologists.Itisequippedwithapanoramiccamera.PreviousmissionshaveshownMarshadwaterinthepast,butscientistswanttofindouthowlongthewaterwasthereandinwhatquantities.ScientistsbelievethewatermayshowthatMarsoncewasabletosupportlife.
