Sputnik II was launched on November 3. 1957. It was the second spacecraft launched into Earth's orbit and the first to carry an animal, Laika, a female samoyed terrier. There was no capability for returning for returning Laika to Earth. It was planned that she would run out of oxygen after 10 days but she probably only survived a day or two. The mission provided scientist with the first data on the behavior of a living organism in space.