On this day in 1957, the second spacecraft ever to enter Earth orbit, Sputnik 2, was launched from Baikonur Cosmodrome in Kazakhstan. On board was Laika, a stray dog from the streets of Moscow. Laika's mission was to demonstrate that mammals could handle

On this day in 1957, the second spacecraft ever to enter Earth orbit, Sputnik 2, was launched from Baikonur Cosmodrome in Kazakhstan. On board was Laika, a stray dog from the streets of Moscow. Laika's mission was to demonstrate that mammals could handle

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