SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Russian Manned Maneuvering Unit (MMU) on display. This device, a propulsion backpack, was developed for the Orlan spacesuit. It is similar to the MMU developed by NASA for its spacesuits. These devices allow astronauts to move freely, independently of a spacecraft, usually to carry out repairs to the external surfaces. Photographed in Russia in 2001.
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