WEBVTT FILE

1
00:00:00.120 --> 00:00:04.330
For most people, a total solar eclipse lasts just a few minutes.

2
00:00:04.330 --> 00:00:07.160
But NASA's pilots find a way to make it last longer

3
00:00:07.160 --> 00:00:09.180
by trying to outrun the Moon’s shadow

4
00:00:09.180 --> 00:00:11.340
with an airplane.

5
00:00:11.340 --> 00:00:12.640
The truth is it's actually chasing us.

6
00:00:12.640 --> 00:00:15.240
We get out in front of it and let it overtake us.

7
00:00:15.240 --> 00:00:16.520
Once we're in totality,

8
00:00:16.520 --> 00:00:18.440
then we'll advance the throttles to max

9
00:00:18.440 --> 00:00:20.860
and try and stay in totality for as long as we can.

10
00:00:20.860 --> 00:00:23.880
Making that happen takes extreme precision.

11
00:00:23.880 --> 00:00:28.550
Scientists calculate exactly where the airplane needs to be at each moment.

12
00:00:28.550 --> 00:00:33.060
We do a lot of missions where being in the right point in time and space are critical

13
00:00:33.060 --> 00:00:34.290
and this is one of them.

14
00:00:34.290 --> 00:00:35.730
On eclipse day,

15
00:00:35.730 --> 00:00:40.700
the WB-57 aircraft climbs more than 50,000 feet into the stratosphere.

16
00:00:40.700 --> 00:00:42.930
That’s above most of Earth's atmosphere,

17
00:00:42.930 --> 00:00:46.380
where clouds, dust, and water vapor could obscure the view.

18
00:00:46.380 --> 00:00:51.770
Viewing an eclipse from 50,000 feet provides a really clear shot of the Sun

19
00:00:51.770 --> 00:00:55.570
and that allows the scientists to have confidence that the data

20
00:00:55.570 --> 00:00:59.210
they're seeing is from the Sun rather than distortions from the atmosphere.

21
00:00:59.210 --> 00:01:03.180
When the Moon’s shadow arrives, it engulfs the aircraft.

22
00:01:03.180 --> 00:01:06.890
It’s weird. Right where you’re at it’s dark but everywhere you see, it's twilight.

23
00:01:06.890 --> 00:01:10.010
The temperature in the cockpit drops, so it’s very noticeable. 

24
00:01:10.010 --> 00:01:11.530
As the eclipse unfolds,

25
00:01:11.530 --> 00:01:13.670
the pilot keeps the aircraft on course

26
00:01:13.670 --> 00:01:18.250
while the sensor operator fine-tunes the cameras, capturing every second of data.

27
00:01:18.250 --> 00:01:20.020
You're very, very, very busy

28
00:01:20.020 --> 00:01:24.050
and it's very high pressure because, of course, there's no do-overs.

29
00:01:24.050 --> 00:01:29.090
You only get one opportunity to get all these instruments trained on the right spot.

30
00:01:29.090 --> 00:01:30.630
For the aircraft crew,

31
00:01:30.630 --> 00:01:33.900
it’s a chance to witness one of nature's most spectacular events

32
00:01:33.900 --> 00:01:36.630
while helping scientists better understand our Sun.

33
00:01:36.630 --> 00:01:38.140
I'm sitting in the best seat in the house

34
00:01:38.140 --> 00:01:39.610
— it's pretty exciting.

35
00:01:39.610 --> 00:01:45.003


