RT @NASA_Johnson: #OTD in 1961, Russian cosmonaut Yuri Gagarin became the first human in space, making a 108-minute orbital flight. http://t.co/yfxLEI7uni
RT @NASA_Johnson: #OTD in 1961, Russian cosmonaut Yuri Gagarin became the first human in space, making a 108-minute orbital flight. http://t.co/yfxLEI7uni