Earth Orbit, Second Artificial Object Launched Into

Earth Orbit, Second Artificial Object Launched Into

Sputnik 2 was launched on November 3, 1957, and was the second artificial craft to reach Earth orbit. Along with various instruments for measuring conditions in Earth’s upper atmosphere, the craft carried a passenger — a little dog named Laika.

No provision was made to return Laika back to Earth. She died before her fourth orbit when the temperature in the cabin rose too high.