ThefirstlivingcreaturestotravelinspacewerethedogsoftheS...
問題詳情：ThefirstlivingcreaturestotravelinspacewerethedogsoftheSovietUnionsspaceprogram.Beginningin1951dogsflewaboardsub-orbitalflightstotheheightof63milesandhigher.Theyhelpedtotesttheequipmentthatwoul...