Respuesta :
D.Sputnik 1,is your answer and here is why. It was the first man made aircraft that was launched into an elliptical low Earth Orbit by the Soviet Union in October 4th, 1957. Apollo 1 was was launched some 10 years after the launch of Sputnik 1 and Apollo 13 was launched in 1970. Glasnost is a Russian word that literally translates to publicity