To make CO2-emission-free space flight florescent by minimizing CO2 emissions for going around the earth sixteen times a day, whereas existing airplanes have an enormous amount of CO2 emission because of very great air resistance during flight in the atmosphere.

A metallic ball and liquid metal gravity type cold-driven turbine as a core and various heat-driven turbines are driven in combination to develop mercury power having the same speed and the same capacity as the atmospheric pressure, about 10,000-23,000 times that of an existing steam turbine. A number of heat pumps are used for compressing solar-heated air to produce heat which is recovered with the solar-heated air heated and compressed. Hot superheated steam and cold compressed air are produced and dividedly conserved to serve the rotation outputs of the plurality of turbines. Thus, a solar heat gravity airship 39G having a combined engine jet part 78W for jet propulsion utilizing the power about 23,000 times that of the existing steam turbine is driven to reduce theoretically best cost using a jet-powered rocket for reaching space from near the maximum flight altitude of existing airplanes, down to 1/100 or smaller, thus actualizing fully popular space flight with zero air resistance and fully enjoyable one-day trip and space trip anywhere on the earth.