Followthefourciviliansastheylaunchintospaceonathree-daytriporbitingEarthandreachinganaltitudehigherthanthatoftheInternationalSpaceStation(ISS).TheSpaceXDragonmission,dubbedInspiration4,isthemostambitioussteptodateintherapidly-developingageofcivilianspaceexploration,makinghistoryasthefirstall-civilianmissiontoorbitddd