SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Space monkey. Rhesus macaque in a space probe simulator during training for the Soviet-American Bion space programme. The monkey is being made accustomed to the environment of a space capsule. Monkeys were sent into space on the Bion program to investigate the physiological changes that occur during spaceflight, as well as to study their response to radiation exposure. Photographed in the USSR in September 1987.
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