Backup ISS computer breaks down, requiring possible spacewalk
Moscow (RIA Novosti) Apr 14, 2014 - A reserve computer mounted on the International Space Station's hull has stopped working. As it will be needed as soon as Wednesday, when the station is to receive a cargo spacecraft, crewmembers may have to perform a spacewalk to replace it. The Multiplexer-Demultiplexer (MDM) computers control certain robotics functions. The ISS's backup MDM computer stopped responding to commands, NASA ... more

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