WEBVTT FILE

1
00:00:00.000 --> 00:00:12.846
[SWOOSHING SOUND EFFECTS]

2
00:00:12.846 --> 00:00:18.685
[INTENSE MUSIC]

3
00:00:18.685 --> 00:00:21.488
>>WEISS: It’s our last shot.
It’s the fifth and final time.

4
00:00:21.488 --> 00:00:24.892
It’s our last shot to extend
Hubble’s life and bring it to

5
00:00:24.892 --> 00:00:29.229
the apex of it’s scientific
capability.   >>GRUNSFELD: And

6
00:00:29.229 --> 00:00:32.332
we just have lots of things we
want to repair on Hubble, and

7
00:00:32.332 --> 00:00:35.636
upgrade on Hubble and not a lot
of time to do it.   >>WEISS: And

8
00:00:35.636 --> 00:00:37.537
we are going to take up
everything we can take up, and

9
00:00:37.537 --> 00:00:39.873
on this flight it’s about
twenty-three thousand pounds of

10
00:00:39.873 --> 00:00:43.176
hardware. >>LECKRONE: This is
going to be a very exciting,

11
00:00:43.176 --> 00:00:47.447
complicated and challenging
mission. We have seven brave

12
00:00:47.447 --> 00:00:49.850
astronauts who’ve made a
conscious decision to risk their

13
00:00:49.850 --> 00:00:53.220
lives in order to continue the
advancement of science that

14
00:00:53.220 --> 00:00:56.556
Hubble has begun. They’re going
to buy another five, perhaps ten

15
00:00:56.556 --> 00:00:59.993
more years of lifetime for this
great telescope. 

16
00:01:01.828 --> 00:01:04.665
>> BURCH: We’ve got a full plate
of things to do. We’ve got major

17
00:01:04.665 --> 00:01:06.199
science upgrades that
we are going to do.

18
00:01:06.199 --> 00:01:08.001
So, we have two
new science instruments

19
00:01:08.001 --> 00:01:10.437
that we are going to
install.   >>GRUNSFELD: We’re

20
00:01:10.437 --> 00:01:13.173
going to put in the Cosmic
Origins Spectrograph. And this

21
00:01:13.173 --> 00:01:15.609
is, you know, the fanciest
spectrograph that has ever been

22
00:01:15.609 --> 00:01:18.845
put into Hubble.  >>LECKRONE:
COS plus Hubble together, will

23
00:01:18.845 --> 00:01:23.684
be able to observe deeper across
the universe than any other

24
00:01:23.684 --> 00:01:27.020
instrument of this kind has ever
done before. >>WEISS: We’re

25
00:01:27.020 --> 00:01:31.158
going to install the Wide Field
Camera 3, Hubble’s new imager.

26
00:01:31.158 --> 00:01:34.261
>>CHEUNG: Wide Field Camera 3’s
discovery factor is about ten

27
00:01:34.261 --> 00:01:38.131
times better than the current
instruments that we have on

28
00:01:38.131 --> 00:01:41.034
Hubble.   One of the beautiful
things about our new camera the

29
00:01:41.034 --> 00:01:45.539
Wide Field Camera 3 is, it will
be capable of looking further

30
00:01:45.539 --> 00:01:48.809
out across the universe and
farther back in time, and closer

31
00:01:48.809 --> 00:01:52.446
to the big bang than any other
camera we’ve ever had on Hubble

32
00:01:52.446 --> 00:01:59.586
before. >>WEISS: We’re also
going to attempt two repairs of

33
00:01:59.586 --> 00:02:02.055
the two failed instruments on
board Hubble: the Advanced

34
00:02:02.055 --> 00:02:07.160
Camera for Surveys and STIS.  
>>LECKRONE: ACS was inserted on

35
00:02:07.160 --> 00:02:11.498
Hubble in 2002. Before it died,
it was the most heavily used

36
00:02:11.498 --> 00:02:15.569
instrument on Hubble. And, STIS
was our first black hole hunter

37
00:02:15.569 --> 00:02:20.007
and it went on to do the first
detection and chemical analysis

38
00:02:20.007 --> 00:02:22.776
of the atmosphere of a planet
around another star. We want to

39
00:02:22.776 --> 00:02:25.946
keep on doing that kind of work
when STIS comes back on line.

40
00:02:25.946 --> 00:02:28.181
>>BURCH: This will be the first
time that we’ve ever done an

41
00:02:28.181 --> 00:02:31.852
in-situ repair of science
instruments. So this will be a

42
00:02:31.852 --> 00:02:35.789
big challenge.  >>MASSIMINO: In
fact there is a hundred and ten

43
00:02:35.789 --> 00:02:38.692
of these very small screws that
we need to remove from the

44
00:02:38.692 --> 00:02:41.028
instrument in order to gain
access to the board we need to

45
00:02:41.028 --> 00:02:45.198
replace. And in space, things
float and debris is a real

46
00:02:45.198 --> 00:02:50.037
issue.   >>LECKRONE: If we’re
successful in repairing these

47
00:02:50.037 --> 00:02:53.040
two science instruments that
have failed, it will be a real

48
00:02:53.040 --> 00:02:56.543
triumph for NASA engineering and
will point the way toward our

49
00:02:56.543 --> 00:03:01.982
ability in the future to repair
instruments in space.   We want

50
00:03:01.982 --> 00:03:06.319
Hubble to last a while longer as
a spacecraft and since this will

51
00:03:06.319 --> 00:03:09.489
be our last opportunity to go
service it we’re going to do

52
00:03:09.489 --> 00:03:13.193
things like change out all the
gyroscopes that help Hubble

53
00:03:13.193 --> 00:03:17.330
point. We’re going to put in a
new fine guidance sensor. I say

54
00:03:17.330 --> 00:03:20.333
a "new" fine guidance sensor; in
fact it’s a refurbished fine

55
00:03:20.333 --> 00:03:23.503
guidance sensor. It’s one that’s
been on Hubble before and been

56
00:03:23.503 --> 00:03:26.673
brought back to Earth,
refurbished it so it’s a "used"

57
00:03:26.673 --> 00:03:33.013
fine guidance sensor but a,
"first class." We’re going to

58
00:03:33.013 --> 00:03:36.183
change out our batteries. We’ve
never put in new batteries since

59
00:03:36.183 --> 00:03:40.353
Hubble was launched.  >>BURCH:
We have some insulation repair

60
00:03:40.353 --> 00:03:43.023
work that needs to be done.
>>GREGORY: We’re going to

61
00:03:43.023 --> 00:03:48.028
install a New Outer Blanket
Layer called a NOBL. Which is a

62
00:03:48.028 --> 00:03:52.032
solid. It’s a blanket anymore;
it’s a solid sheet that will go

63
00:03:52.032 --> 00:03:56.369
over the blanket.   And, we’ll
also be installing a soft

64
00:03:56.369 --> 00:03:59.539
capture mechanism on the aft
bulkhead of Hubble that will

65
00:03:59.539 --> 00:04:03.643
help facilitate a future mission
to Hubble primarily for the

66
00:04:03.643 --> 00:04:08.482
purpose of deorbiting it at the
end of it’s useful life.  

67
00:04:08.482 --> 00:04:10.650
>>LECKRONE: The two repaired
scientific instruments working

68
00:04:10.650 --> 00:04:13.653
in tandem with the two new
instruments that we are going to

69
00:04:13.653 --> 00:04:17.324
put on board Hubble in this
mission will enable scientists

70
00:04:17.324 --> 00:04:20.894
to tackle some of the most
profound issues facing modern

71
00:04:20.894 --> 00:04:27.167
science, not just astronomy but
physics today. This in my mind

72
00:04:27.167 --> 00:04:30.337
means that when the astronauts
leave Hubble after Servicing

73
00:04:30.337 --> 00:04:33.340
Mission 4, it will be at the
absolute apex of its

74
00:04:33.340 --> 00:04:42.015
capabilities. It will be better
than it’s ever been before.

75
00:04:42.015 --> 00:00:00.000
[INTENSE MUSIC]