Astronauts Piers J. Sellers (left) and David A. Wolf in the midst of a pre-breathe exercise in preparation for a spacewalk. | ...

November 3: Sputnik 2 carries Laika, a female dog, into space ... tests the Lunar Module for the first time, in Earth orbit. May 18-26: Apollo 10 utilizes both the command-service module and ...

The Space Race was a battle in the Cold War ... because they were so close. Their Lunar Module vehicle, the N1, obviously was a failure. They knew they couldn't land on the moon first, but ...