Emergency spacewalk: Here's why NASA astronauts will venture outside space station on Tuesday
The multiplexer-demultiplexer (MDM) data relay box on the S0 truss failed on Saturday morning.
May 22, 2017, 11:31 AM IST
The multiplexer-demultiplexer (MDM) data relay box on the S0 truss failed on Saturday morning.
May 22, 2017, 11:31 AM IST