[00:01.600 --> 00:02.320]  Challenge 2
[00:03.520 --> 00:05.140]  Here's what we know.
[00:05.140 --> 00:11.740]  The satellite is spinning out of control because the Guidance Navigation and Control System, or GNC, is inoperable.
[00:11.740 --> 00:13.900]  We suspect sabotage.
[00:13.960 --> 00:20.140]  The challenge? Teams must repair the GNC system as quickly as possible to stop the dangerous spinning.