Vostok 3 was a Soviet space mission launched on August 11, 1962. It was part of the Vostok program, which aimed to explore human spaceflight. The spacecraft carried cosmonaut Andriyan Nikolayev, who orbited the Earth 64 times over a mission duration of nearly four days. During the flight, Vostok 3 conducted various scientific experiments and gathered data on the effects of space travel on the human body. This mission contributed to the understanding of long-duration spaceflight and helped pave the way for future missions in the Soviet space program.