Willhumanseverbeabletoliveonotherplanets?FormerNASAastronautDr.DaveWilliamsisthepersontoask.ItturnsoutthatEarthisaprettygoodplacetolive.Findingotherhabitableenvironmentsinspaceisnoeasytask:temperaturesonMercuryaretentimeshotterthanonEarth;winteronNeptunelastsaboutfortyyears,andUranusistenbillionmiles(sixteenbillionkilometers)away.Butthereisoneplanetthatlookspromising:Mars.Eventhoughittakessixmonthstogetthere,MarsmostcloselyresemblesEarth.Sowhatwouldittaketomakeithabitable--andwhatwouldlifelooklikethere?AsintheotherthreetitlesintheDr.Dave:Astronautseries,thisbookdemystifiesspacetravel.Thescienceisexplainedinsimpletermswhilethesenseofadventureisever-present.Thisbookbelongsinthehandsofeverychildinterestedinspace,andineveryclassroomwhereSTEMistaught.
