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The Russian street dog was the first living creature to orbit the Earth. She was sent into space in November 1957. She died after orbiting the Earth four times. Professor Victor Yazdovsky was nine years old when his father brought Laika back from the laboratory to play with him. He has been speaking to Olga Smirnova for Witness.

Photo: Laika the dog. Credit: Keystone/Hulton/Getty Images.