WEBVTT FILE

1
00:00:00.000 --> 00:00:01.968
“3, 2, 1, fire!”

2
00:00:01.968 --> 00:00:04.237
The Nancy Grace Roman
Space Telescope
has finished its deployment test.

3
00:00:04.237 --> 00:00:10.176
An engineer sent the release
command, unlocking the panels
of the Solar Array Sun Shield.

4
00:00:10.176 --> 00:00:15.181
Non-explosive actuators fired,
each marked by a sharp pop.

5
00:00:15.181 --> 00:00:19.185
The panels moved into place,
driven by spring tension...

6
00:00:19.185 --> 00:00:26.559
…just as they will when
the telescope is in space.

7
00:00:26.559 --> 00:00:35.502
The next day, the team tested
the Deployable Aperture Cover.

8
00:00:35.502 --> 00:00:42.342
A gravity offload system
balanced the cover for deployment.

9
00:00:42.342 --> 00:00:52.252
Precise counterweights reduced
drag, simulating weightlessness.

10
00:00:52.252 --> 00:00:58.425
Both deployment tests
were declared successful.

11
00:00:58.425 --> 00:01:12.705
This milestone brings
Roman closer to launch,
and to the discoveries that await.

12
00:01:12.705 --> 00:01:20.780
NASA Meatball