[00:01.180 --> 00:02.180]  Challenge 5
[00:03.340 --> 00:04.740]  Here's what we know.
[00:04.740 --> 00:08.720]  We've done our best work, and it seems that we've regained control of the satellite.
[00:08.720 --> 00:10.600]  But how do we know for sure?
[00:10.980 --> 00:17.560]  The challenge? Teams must prove that we are fully in control of the satellite system by successfully imaging the moon.