The dog Laika, the first living creature to orbit the Earth, did not live nearly as long as Soviet officials led the world to believe.



The animal, launched on a one-way trip on board Sputnik 2 in November 1957, was said to have died painlessly in orbit about a week after blast-off.



Now, it has been revealed she died from overheating and panic just a few hours after the mission started.

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