Gravitational Slingshot Trajectory adopted by Apollo-11 program to reach the Moon is named after a self-educated Ukrainian mathematician who had made calculations 50 years before the Lunar Flight: Yuri Kondratyuk was born June 21, 1897

New Mexico Museum of Space History: “Yuri Vasilievich Kondratyuk (1897-1942). Born as Aleksandr Shargei, he took a new name to avoid persecution during the Russian Revolution. Kondratyuk wrote visionary works on spaceflight and rocketry. He suggested using space vehicles that had two or more modules that could use the Earth’s gravity to ‘sling-shot’ a manned … Continue reading Gravitational Slingshot Trajectory adopted by Apollo-11 program to reach the Moon is named after a self-educated Ukrainian mathematician who had made calculations 50 years before the Lunar Flight: Yuri Kondratyuk was born June 21, 1897