1 00:00:00,010 --> 00:00:04,170 A day like any other brings the sun. But this 2 00:00:04,190 --> 00:00:08,350 is not a day like any other. It’s Day One of NASA’s Robotic 3 00:00:08,370 --> 00:00:12,530 Refueling Mission, or RRM. The action is on the 4 00:00:12,550 --> 00:00:16,700 International Space Station, but also on the ground. Aimed at developing 5 00:00:16,720 --> 00:00:20,860 capabilities for servicing…even refueling…spacecraft on orbit, 6 00:00:20,880 --> 00:00:25,010 RRM is like doing precise surgery at a distance, doctor and 7 00:00:25,030 --> 00:00:29,150 patient separated by the void and vacuum of space. It’s tough… 8 00:00:29,170 --> 00:00:33,270 but the payoff is huge. No refueling on Day 9 00:00:33,290 --> 00:00:37,380 One, however. That’s Day Five. Today’s goal… unscrewing 10 00:00:37,400 --> 00:00:41,470 a mechanical cap. But first the team has to get through a locking 11 00:00:41,490 --> 00:00:45,550 wire. Ground controllers at the Johnson Space Center in Houston, and 12 00:00:45,570 --> 00:00:49,620 engineers using the high fidelity mock-up here at Maryland’s Goddard Space Flight 13 00:00:49,640 --> 00:00:53,660 Flight Center wait. Months of careful software development, 14 00:00:53,680 --> 00:00:57,720 hardware design, and procedural rehearsals come to this. Then… 15 00:00:57,740 --> 00:01:01,900 snip. The tool cuts through, but one tiny 16 00:01:01,920 --> 00:01:06,080 end wiggles itself into a crazy position that could get in the way of unscrewing 17 00:01:06,100 --> 00:01:10,260 the fuel cap. A penny’s worth of wire could foul the whole 18 00:01:10,280 --> 00:01:14,440 operation. Smart people get to work. And that’s the 19 00:01:14,460 --> 00:01:18,630 point of RRM: test, test, test…and learn everything 20 00:01:18,650 --> 00:01:22,810 possible from what happens next. Once flying, 21 00:01:22,830 --> 00:01:26,990 satellites are uncooperative creatures, and learning how to tame them in space 22 00:01:27,010 --> 00:01:31,160 takes patience and wit. Soon that pesky wire gets nudged 23 00:01:31,180 --> 00:01:35,300 , and the team goes in for the grapple. Contact…