Tag: MDM

Astronauts Peggy Whitson and Jack Fischer completed a 2 hour 41-minute contingency spacewalk today following the failure of an Multiplexer-Demultiplexer (MDM) over the weekend. During the walk, they successfully replaced the MDM and also installed two wireless network antenna’s This was Peggy’s 10th walk for a total time of 60 hours 21-minutes, surpassing John Grunsfeld to…