1
00:00:25,443 --> 00:00:26,778
[Franklin] Hmm.
2
00:00:26,861 --> 00:00:30,782
There are lots of promising leads
for life in our solar system,
3
00:00:30,865 --> 00:00:33,285
but so far, nothing definite.
4
00:00:33,368 --> 00:00:37,956
That's why NASA and its international
partners run overlapping missions.
5
00:00:38,039 --> 00:00:41,251
So they can follow
as many different leads as possible.
6
00:00:41,334 --> 00:00:46,631
So maybe we need to think even bigger
and look outside the solar system.
7
00:00:46,715 --> 00:00:49,009
I thought you'd never ask, Charles.
8
00:00:49,092 --> 00:00:52,888
As this map shows,
the galaxy is pretty big.
9
00:00:55,223 --> 00:00:57,058
[both yelp]
10
00:00:58,643 --> 00:00:59,686
Hmm?
11
00:01:04,148 --> 00:01:06,067
- [gasps, gulps]
- [gulps]
12
00:01:08,278 --> 00:01:12,782
Our solar system is right about there.
13
00:01:14,451 --> 00:01:16,536
By that speck of dust?
14
00:01:17,203 --> 00:01:19,205
It is that speck of dust.
15
00:01:21,207 --> 00:01:22,500
[gasps]
16
00:01:22,584 --> 00:01:24,169
[grunting]
17
00:01:25,128 --> 00:01:27,297
Where are all these planets hiding?
18
00:01:27,380 --> 00:01:31,593
When you look at the night sky,
all you see is space and stars.
19
00:01:31,676 --> 00:01:35,639
True, but each of those stars is
a sun that might have its own planets.
20
00:01:35,722 --> 00:01:36,723
[clatters]
21
00:01:36,806 --> 00:01:38,016
Exactly!
22
00:01:38,099 --> 00:01:39,476
[all gasp]
23
00:01:40,602 --> 00:01:42,145
Sorry about that. [chuckles]
24
00:01:42,229 --> 00:01:45,065
I've been working
on my dramatic entrances.
25
00:01:45,148 --> 00:01:47,025
[chuckles] But Marcie is right.
26
00:01:47,108 --> 00:01:48,860
Every star is a sun,
27
00:01:48,944 --> 00:01:53,073
and the planets orbiting
those distant suns are called exoplanets,
28
00:01:53,156 --> 00:01:55,617
or planets outside of our solar system.
29
00:01:56,201 --> 00:01:58,703
NASA has been looking for them for years.
30
00:01:58,787 --> 00:02:02,624
The search for exoplanets is
one of NASA's most exciting projects.
The search for exoplanets is
one of NASA's most exciting projects.
31
00:02:03,208 --> 00:02:05,502
{\an8}One way we look for them is
to study distant stars
32
00:02:05,585 --> 00:02:08,671
{\an8}to see if there's a little dip
in their brightness.
33
00:02:09,004 --> 00:02:13,635
{\an8}That dip could indicate
a planet passing by as it orbits the star.
34
00:02:13,718 --> 00:02:17,806
We can follow up with other telescopes
that look for a little wobble in the light
35
00:02:17,889 --> 00:02:20,267
that could also be caused by a planet.
36
00:02:20,350 --> 00:02:21,768
When we do find a planet,
37
00:02:21,851 --> 00:02:28,775
we use very powerful space telescopes,
like Hubble or the James Webb Telescope,
38
00:02:28,858 --> 00:02:30,944
to examine the planet more closely,
39
00:02:31,027 --> 00:02:33,697
to see if it might be able
to support life.
40
00:02:35,657 --> 00:02:38,702
We've already recorded
quite a few exoplanets.
41
00:02:38,785 --> 00:02:39,786
Have a look.
42
00:02:41,413 --> 00:02:42,789
[grunting]
43
00:02:42,872 --> 00:02:43,873
[yelps]
44
00:02:43,957 --> 00:02:44,958
[both] Oh!
45
00:02:45,041 --> 00:02:48,461
[all] Whoa! Wow!
46
00:02:52,966 --> 00:02:57,220
Here's a planet that orbits the star
once every 18 hours.
47
00:02:57,304 --> 00:03:00,849
That means a year is only 18 hours long!
That means a year is only 18 hours long!
48
00:03:00,932 --> 00:03:03,268
It would be your birthday every day.
49
00:03:04,936 --> 00:03:08,023
♪ Happy birthday to me ♪
50
00:03:08,106 --> 00:03:10,025
[inhales, blows]
51
00:03:10,108 --> 00:03:11,526
[watch ticking]
52
00:03:14,112 --> 00:03:16,072
♪ Happy birthday to me ♪
53
00:03:18,617 --> 00:03:20,785
♪ Happy birthday to me ♪
54
00:03:21,828 --> 00:03:23,538
♪ Happy birthday to me ♪
55
00:03:25,165 --> 00:03:28,001
[hums "Happy Birthday"]
56
00:03:28,084 --> 00:03:31,796
Unfortunately, Sally,
that planet is incredibly hot,
57
00:03:31,880 --> 00:03:34,132
and the surface is made out of gas.
58
00:03:34,216 --> 00:03:36,593
Not the best spot for a birthday party.
59
00:03:36,676 --> 00:03:40,722
Oh, well, I'd probably get a stomachache
from all that cake anyway.
60
00:03:41,348 --> 00:03:43,934
Here's an exoplanet that has two suns.
61
00:03:44,643 --> 00:03:47,229
Imagine how fast my garden would grow.
62
00:03:49,940 --> 00:03:51,900
[slurps]
63
00:03:53,652 --> 00:03:58,448
[sighs] Nothing beats a double sunny day
and some hard work in the garden.
64
00:03:58,531 --> 00:03:59,532
Phew!
65
00:03:59,616 --> 00:04:00,909
[slurps]
[slurps]
66
00:04:01,910 --> 00:04:04,955
[groans] I'm tired just thinking about it.
67
00:04:05,038 --> 00:04:07,249
[CARA]
Don't let the two suns fool you, Lucy.
68
00:04:07,332 --> 00:04:11,711
The average temperature on that planet is
much too cold to grow your garden.
69
00:04:11,795 --> 00:04:14,256
Also, minor point, it has no soil.
70
00:04:14,965 --> 00:04:16,466
[sighs]
71
00:04:16,550 --> 00:04:20,345
These exoplanets don't seem
very promising so far.
72
00:04:20,428 --> 00:04:25,517
That's only two. It says here
NASA has discovered over 4,000.
73
00:04:26,518 --> 00:04:27,936
4,000?
74
00:04:28,436 --> 00:04:31,106
[whirring, beeping]
75
00:04:31,189 --> 00:04:35,902
And that's just the ones we know about.
The actual number is probably closer to--
76
00:04:35,986 --> 00:04:37,320
A jagillion?
77
00:04:38,238 --> 00:04:40,031
That's not a real number.
78
00:04:40,115 --> 00:04:41,908
More like a hundred billion.
79
00:04:43,285 --> 00:04:45,495
And that's just in the Milky Way.
80
00:04:45,579 --> 00:04:48,957
Which is one of billions
and billions of galaxies!
81
00:04:53,587 --> 00:04:56,464
[gulps] Billions and billions?
82
00:04:56,548 --> 00:04:59,384
Just when you think
you understand the universe.
83
00:04:59,467 --> 00:05:01,052
[alarm beeping]
[alarm beeping]
84
00:05:01,136 --> 00:05:02,178
[yells]
85
00:05:03,805 --> 00:05:07,475
[gasps] Those are the controls
for a high-powered telescope.
86
00:05:07,559 --> 00:05:09,185
Charlie Brown!
87
00:05:10,353 --> 00:05:12,355
[groans] I hope I didn't break it.
88
00:05:12,439 --> 00:05:16,151
I don't think my allowance can cover
the cost of a NASA telescope.
89
00:05:16,234 --> 00:05:17,777
[electronic twittering]
90
00:05:20,280 --> 00:05:21,364
Hang on.
91
00:05:21,448 --> 00:05:25,535
Hmm. Interesting.
92
00:05:29,998 --> 00:05:32,000
I may be wrong,
93
00:05:32,083 --> 00:05:35,587
but it looks like the light
from that star is dipping a bit.
94
00:05:35,670 --> 00:05:37,088
Checking coordinates.
95
00:05:37,172 --> 00:05:39,090
Beep-bop, boop-boop-boop, beep-bop-boop.
96
00:05:39,174 --> 00:05:41,635
[gasps] Outstanding.
97
00:05:41,718 --> 00:05:42,928
Charlie Brown,
98
00:05:43,011 --> 00:05:47,641
I think you may have just discovered
a brand-new exoplanet.
99
00:05:47,724 --> 00:05:50,143
- [gasps]
- [CARA] Congratulations.
100
00:05:50,227 --> 00:05:53,271
My-- My very own exoplanet?
101
00:05:53,772 --> 00:05:55,607
- Way to go, Charlie Brown!
- Nice work.
102
00:05:55,690 --> 00:05:56,983
- [cheering]
- Awesome! Yeah!
103
00:05:57,067 --> 00:05:58,068
It's about time.
104
00:05:58,151 --> 00:06:00,403
[Peppermint Patty]
Charlie Brown does it again.
[Peppermint Patty]
Charlie Brown does it again.
105
00:06:01,446 --> 00:06:04,241
It looks like it's almost
the same size as Earth
106
00:06:04,324 --> 00:06:08,453
and about the same distance from its star
as Earth's distance from the sun.
107
00:06:08,536 --> 00:06:12,040
That means it could be
a perfect planet for life to exist.
108
00:06:12,582 --> 00:06:14,334
A perfect planet?
109
00:06:14,417 --> 00:06:16,336
["Charlie Brown" playing]
110
00:06:19,839 --> 00:06:23,426
Are all those valentines for you,
big brother?
111
00:06:23,510 --> 00:06:27,222
There's even one
from The Little Red-Haired Girl. [sighs]
112
00:06:27,514 --> 00:06:32,936
Before we start, I just want to say
how much I appreciate you, Charlie Brown.
113
00:06:33,019 --> 00:06:34,354
No charge today.
114
00:06:35,105 --> 00:06:36,773
[song continues]
115
00:06:37,857 --> 00:06:41,695
Say what you will about Charlie Brown,
he knows how to fly a kite.
116
00:06:44,072 --> 00:06:46,700
[Franklin] Strike three! You're out!
117
00:06:46,783 --> 00:06:50,829
Wow, you pitched a perfect game,
Charlie Brown.
118
00:06:50,912 --> 00:06:52,289
We won!
119
00:06:52,372 --> 00:06:54,791
[all] Charlie Brown. Charlie Brown.
120
00:06:54,874 --> 00:06:57,210
- Charlie Brown!
- [music stops]
121
00:07:00,463 --> 00:07:04,426
I mean, wow, an exoplanet.
122
00:07:04,509 --> 00:07:06,136
How soon can we get there?
123
00:07:06,219 --> 00:07:09,556
Get there? [chuckles]
It would take hundreds of years.
124
00:07:09,639 --> 00:07:11,349
Entire generations.
125
00:07:11,850 --> 00:07:15,145
It's a terrific discovery, Charlie Brown,
126
00:07:15,228 --> 00:07:19,065
but going there is pretty much impossible
with today's technology.
127
00:07:19,149 --> 00:07:20,150
Rats.
128
00:07:25,989 --> 00:07:26,990
[grunts]
129
00:07:28,992 --> 00:07:30,076
[strains]
130
00:07:34,289 --> 00:07:35,540
[engine starts]
131
00:07:35,624 --> 00:07:38,209
Whoo-hoo-hoo-hoo!
132
00:07:39,336 --> 00:07:40,629
[Marcie] Hey!
133
00:07:41,630 --> 00:07:44,132
Has anyone seen my map of the galaxy?
134
00:07:44,758 --> 00:07:46,968
How do you lose a whole galaxy?
135
00:07:47,052 --> 00:07:49,012
[Snoopy, Woodstock chattering]