The present airship-shaped 
space craft has a middle 
fuselage extending in a fore-and-aft direction, and a pair of two outer fuselages extending in the fore-and-aft direction located symmetrically on both sides of the middle 
fuselage. In the above fuselages, gas of a 
specific gravity of which is smaller than that of air is filled, and the middle 
fuselage is connected with the outer fuselages by a horizontal wing. The horizontal wing is provided with propelling devices supported in a 
gimbal fashion for generating thrust in any optional direction, jet engines with backwards directed nozzles to be controlled within a range from a slantwise upward direction to a slantwise downward direction, and 
rocket engines with ejection nozzles to be controlled in right-and-left and up-and-down directions. During ascent of the 
space craft, at first the propelling devices, then the jet engines and at last the 
rocket engines are actuated so as to make the 
space craft reach and fly along a 
satellite orbit. Upon return of the space craft, the 
rocket engines, the jet engines and the propelling devices are actuated in 
reverse order, and 
aerodynamic heating at reentry into the atmospheric space can be reduced by making the space craft descend slowly. Also, control of the flight in the atmospheric space becomes easy, so that the space craft can safely and easily land on a predetermined narrow area of the ground.