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Sputnik I (4 oct 1957 año – 4 dic 1957 año)

Descripción:

The Soviet Union launches the first successful satellite into space. Less than a month later they launched a second satellite with a dog named Laika on board. She was put to sleep 7 days after launch to avoid her suffocating when the oxygen ran out.

Añadido al timeline:

fecha:

4 oct 1957 año
4 dic 1957 año
~ 2 months