1
00:00:00,240 --> 00:00:09,289
"Liftoff of the Space Shuttle Discovery with the 
Hubble Space Telescope, our window on the universe!"

2
00:00:09,289 --> 00:00:19,135
Since its launch in 1990, the Hubble Space Telescope
has revolutionized our understanding of the cosmos.

3
00:00:19,135 --> 00:00:32,528
An off-world observatory designed
to be serviced and repaired in space...

4
00:00:32,528 --> 00:00:35,136
...Hubble would view the universe
with unprecedented clarity.

5
00:00:35,136 --> 00:00:37,468
"Discovery you're go for umbilical disconnect."

6
00:00:37,468 --> 00:00:45,159
...Hubble would view the universe
with unprecedented clarity.

7
00:00:45,159 --> 00:00:57,803
But soon after launch, it became obvious that Hubble’s mirror 
had a slight flaw, which meant its images were blurry.

8
00:00:57,803 --> 00:01:11,500
To fix Hubble’s vision, engineers designed
the Corrective Optics Axial Replacement (COSTAR)...

9
00:01:11,500 --> 00:01:22,542
...and the Wide Field and Planetary Camera 2 (WFPC2)
to compensate for the mirror’s imperfection.

10
00:01:24,311 --> 00:01:32,942
But designing them was only half the challenge.
The delicate repair in space could only be
accomplished by highly trained astronauts.

11
00:01:32,942 --> 00:01:36,772
"Liftoff of the Space Shuttle Endeavour on an ambitious 
mission to service the Hubble Space Telescope!"

12
00:01:36,772 --> 00:01:50,964
Matching Hubble’s speed of 17,000 mph, 
the crew of the Space Shuttle Endeavour captured
the telescope and secured it in the cargo bay.

13
00:01:50,964 --> 00:02:06,226
The astronauts installed COSTAR and WFPC2, and
made other important improvements to the telescope.

14
00:02:06,226 --> 00:02:18,006
The repair was a success and Hubble’s mission could 
resume with the clarity that astronomers had longed for.

15
00:02:18,006 --> 00:02:24,775
In the decades since, Hubble would be 
repaired and upgraded four more times.

16
00:02:24,775 --> 00:02:28,559
"Liftoff! Discovery now on its way to service nasa's Hubble Space Telescope!"

17
00:02:28,559 --> 00:02:30,559
"Liftoff of the Space Shuttle discovery!"

18
00:02:30,559 --> 00:02:33,250
"Liftoff of Space Shuttle Columbia!"

19
00:02:33,250 --> 00:02:36,618
"Liftoff of space shuttle Atlantis

20
00:02:36,618 --> 00:02:43,948
the final visit to enhance the vision of Hubble to the deepest 
grandeur of our universe!"

21
00:02:48,755 --> 00:03:00,977
Each servicing mission gave us new confidence 
in what human beings could achieve in space…

22
00:03:00,977 --> 00:03:12,694
...and helped Hubble deepen our
understanding of the universe.

23
00:03:12,694 --> 00:03:21,593
Hubble continues its remarkable scientific mission,
allowing us to behold the mystery and majesty of space.

24
00:03:21,593 --> 00:03:39,416
[ INTENSE MUSIC ]