Unplanned Spacewalk Given Green Light to Replace Failed Device

By Steve Spaleta | May 22, 2017 09:59am ET

NASA Astronauts Peggy Whitson and Jack Fisher will replace the multiplexer/demultiplexer (MDM) on May 23, 2017. The device controls the functionality of radiators, solar arrays, cooling loops and other Internation Space Station hardware. [Full Story]

credit : Space.com / footage courtesy: NASA / edited by @SteveSpaleta

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