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Photos

Snapshots of what’s happening in the Defense Department.

An astronaut in a spacesuit floats untethered above Earth.

Above Earth

In April 1983, NASA Astronaut Bruce McCandless II, a mission specialist, participates in an extravehicular activity a few meters away from the cabin of the shuttle Challenger during the STS-41B mission. He is using a nitrogen-propelled hand-controlled manned maneuvering unit. This was the first time an astronaut performed a spacewalk without being tethered to the shuttle.

Photo Gallery