Top Historic Moments on Instagram: "On the 12th of April 1961, Soviet cosmonaut Yuri Gagarin became the first human to travel into space aboard Vostok 1. Launched from Baikonur Cosmodrome, he completed a single orbit around Earth in 108 minutes, reaching an altitude of 327 kilometers. Gagarin’s radio call, “Poyekhali!” (“Let’s go!”), marked the historic moment. His safe return, parachuting from his capsule in Siberia, cemented a Soviet victory in the space race. The mission showcased Soviet tech