Tag: the International Space Station

Earlier today Astronauts Rick Mastracchio and Steve Swanson stepped outside the International Space Station for a 1h 36m spacewalk to replace a failed Multiplexer/Demultiplexer (MDM) unit.  In addition they completed a get-ahead task to remove two lanyard’s from the Secondary Power Distribution Assembly SPDA doors, this will allow the Special Purpose Dexterous Manipulator attachment of the Canadarm2 to…