NASA Challenger Mission STS-41-B

Space Shuttle Challenger Mission STS-41-B footage, narrated by members of the mission crew. NASA Astronaut Bruce McCandless II aboard the Space Shuttle Challenger after extravehicular activity (EVA) spacewalk. McCandless recharging and replenishing his spacesuit after his EVA. McCandless discusses installing a fresh lithium-hydroxide cartridge in his spacesuit for filtering carbon-dioxide. Astronaut Robert L. Stewart conducting an EVA spacewalk in the Manned Maneuvering Unit (MMU). Stewart discusses practicing inverted docking in the MMU; McCandless and Stewart conducting EVA spacewalks in the MMU. McCandless operating the MMU above Earth. Astronaut in full spacesuit operating the MMU in the shuttle payload bay. McCandless talks about using the MMU; Astronaut operating the MMU outside Challenger. McCandless talks about moving in outer space, saying there is no up or down. Astronaut operating the MMU upside down above the Challenger payload bay.