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NASA astronaut Bruce McCandless making the first-ever tetherless |
On Feb. 7, 1984, NASA astronaut Bruce McCandless became the first person to go on a spacewalk without a tether.
McCandless was wearing a type of jetpack known as the Manned Maneuvering Unit, or MMU. The MMU fit over a regular EMU spacesuit and included gas thrusters that allowed astronauts to venture much farther away from the space shuttle.
McCandless was able to venture 320 feet away from the space shuttle Challenger.
Source: www.space.com
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