Tragically, she could not safely return to Earth. In 1968, the Soviet Union launched the Zond 5 spacecraft aboard soil and seed samples, worms, and two steppe tortoises. After successfully ...

The audio also includes a human voice speaking in Russian. A similar voice had been picked up by Jodrell Bank during the flight of Zond 5 in September 1968. It is thought to have been either a ...