The Laika did not return to Earth in 1957. Laika was a Soviet space dog and the first animal in history. It entered space aboard the "Sputnik 2" artificial earth satellite, but this mission did not plan for Laika to return to Earth.

Due to the limitations of aerospace technology at the time, it was impossible to provide life support and technical support for Laika to return to Earth. He died in space shortly after completing his mission. Therefore, the Laika did not return to Earth.