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Space Voyages:

A Spacewalker's Emergency Lifejacket

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A Spacewalker's Emergency Lifejacket

Short | 02:30

Astronaut Bruce McCandless was the first man to test NASA's Manned Maneuvering Unit or MMU. In 1984, he floated alone in space for almost six hours before returning safely to the spacecraft.

More About This episode

Space is no longer just for governments. Little companies with big ideas are now reaching for the skies, making commercial human spaceflight a reality. Private businesses are investing big and aiming high, building their own rockets and orbiters, deploying commercial satellites to connect the globe, and preparing for space tourism. NASA's shuttle may have been grounded, but for corporations, the sky is no longer the limit.

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