1
00:00:01,390 --> 00:00:09,910
[Music]

2
00:00:14,789 --> 00:00:12,310
hubble doesn't have any thrusters on

3
00:00:17,510 --> 00:00:14,799
board to be able to propel us in any way

4
00:00:19,029 --> 00:00:17,520
shape or form

5
00:00:21,750 --> 00:00:19,039
what we can do is we can turn our

6
00:00:23,990 --> 00:00:21,760
attitude and what we do is we have

7
00:00:26,070 --> 00:00:24,000
reaction wheels that are about two feet

8
00:00:27,750 --> 00:00:26,080
wide we've got four of them if you spin

9
00:00:29,910 --> 00:00:27,760
a reaction wheel in one way the

10
00:00:31,360 --> 00:00:29,920
telescope will rotate in the opposite

11
00:00:32,549 --> 00:00:31,370
way

12
00:00:34,790 --> 00:00:32,559
[Music]

13
00:00:36,709 --> 00:00:34,800
we're moving all over the sky looking at

14
00:00:38,630 --> 00:00:36,719
different places

15
00:00:41,430 --> 00:00:38,640
typically we will go to a target and

16
00:00:47,690 --> 00:00:41,440
stay there for probably two orbits each