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Laika was a normal street dog in Russia
Chosen to be sent in space
The aim was to find out how long a dog can survive in zero gravity
3 Nov 1957, Russians launched Laika into space
It was a suicide mission for Laika
but then the cooling system failed
Laika had nowhere to go...
162 days after launch...
Sputnik re-entered Earth's atmosphere
Her remains were never found