Astronauts… Straightaway there is a smiling person wearing a spacesuit in our imagination. But many animals sacrificed their lives so that we could explore space. Belka and Strelka are legendary mongrels which succeeded in performing orbital space flight and coming back to the Earth alive. How did they do it, and what was the preparation for the space flight like? Watch this video to discover interesting facts you never knew before! 🌎 New video: [ Ссылка ]

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