With the general trend of hydrocarbon exhaustion in the long run, constantly increasing cargo flows into space can be provided with electromagnetic accelerators. Due to unbearable for manned flights g-load, astronauts will have to make flights in oxygen-hydrogen carrier vehicles, the transition to which corresponds to global trends in cosmonautics. Production of oxygen-hydrogen fuel is possible not only on Earth, but also in space, which significantly expands the capabilities of astronautics. Ice comets and asteroids, Martian polar ice caps, ice breaks up to 60 km wide on the Moon surface are all sources of water. The developments of oxygen-hydrogen fuel production systems that use the process of water electrolysis, and also systems for its storage and carriers refueling in space are already underway. Studies of unidentified flying objects (UFOs) indicate in them usage of energy from the environment and lead us the possibility of switching all vehicles to fundamentally more powerful clean energy. © 2020, Univelt Inc. All rights reserved.