Imperial Russian and Soviet rocket scientist and pioneer of the astronautic theory.
Pioneering French aircraft designer and spaceflight theorist
American professor, physicist, and inventor who is credited with creating and building the world's first liquid-fueled rocket, which he successfully launched on March 16, 1926
Austro-Hungarian-born German physicist and engineer, he is considered one of the founding fathers of rocketry and astronautics
lead the development of the Saturn V booster rocket that helped land the first men on the Moon