1
00:00:07,990 --> 00:00:06,150
the most complex machine ever built

2
00:00:11,669 --> 00:00:08,000
to bring humans to

3
00:00:17,430 --> 00:00:14,549
and eventually construct the next stop

4
00:00:23,109 --> 00:00:17,440
on the road to space exploration

5
00:00:23,119 --> 00:00:28,390
nasa space shuttle