The crew of Space Shuttle mission STS 41-B provide an overview of their mission. Challenger launched from the Kennedy Space Center on February 3, 1984, and although the flight was marred by the failure of two commercial satellite deployments, astronaut Bruce McCandless made history by making the first untethered spacewalk using the Manned Maneuvering Unit jet pack.
The five STS-104 Atlantis astronauts narrate the highlights of their mission in this post-flight film. The shuttle mission in July 2001 delivered the $164 million Joint Airlock to the International Space Station. The module, named Quest, gave the outpost a new doorway for American and Russian spacewalks.