system for the cabin, and scientific instruments. A separate sealed cabin contained the dog Laika.

Though Laika died shortly after reaching orbit, Sputnik 2 marked another huge success for the Soviet Union in The Space Race, lofting a huge payload for the time, sending an animal into orbit, and, for the first time, returning scientific data from above the Earth's atmosphere for an extended period. The satellite reentered Earth's atmosphere on 14 April 1958. Korabl-Sputnik 2