NASA NASA astronaut Bruce McCandless II stepped away from the Space Shuttle Challenger on Feb. 7, 1984, using a jet-powered backpack called the Manned Manoeuvring Unit (MMU). He was the first ...

In 1977, Whitsett arrived at NASA, where he and McCandless used the Skylab results to improve their design. Powered by 24 small gaseous nitrogen thrusters, the manned maneuvering unit let ...

The halt came after a series of alarming incidents involving NASA’s aging Extravehicular Mobility Unit (EMU) spacesuits, ...

NASA astronaut Zena Cardman, who is assigned to fly to the International Space Station later this year, is captured wearing an extravehicular mobility unit (EMU) spacesuit in this stark black and ...

Astronaut Zena Cardman poses in an extravehicular mobility unit (EMU) spacesuit for NASA photographer Josh Valcarcel at Johnson Space Center in Houston, Texas. | Credit: NASA/Josh Valcarcel NASA ...