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♪ ♪
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00:00:14,038 --> 00:00:17,948
WILL SMITH: I'm gonna
tell you about the
most incredible place.
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00:00:20,321 --> 00:00:24,100
It might be the weirdest
place in the whole universe...
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00:00:25,560 --> 00:00:32,969
Full of liquid rock, crystal
caves and alien landscapes...
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00:00:34,984 --> 00:00:36,346
And you know what?
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00:00:38,058 --> 00:00:39,673
You're walking on it.
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00:00:49,202 --> 00:00:54,227
We think we know our home,
but once you've seen it
from space it hits you...
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CHRIS: I really wish
that everyone could see the
world the way that I've had
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a chance to see it.
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NICOLE: First you look at it
and really are wondering what
it even is that you're seeing.
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-Just like I lived
my whole live in a semi
dark room and somebody
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00:01:13,938 --> 00:01:15,305
flipped on the lights.
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MAE: A living, breathing,
working planet.
14
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-It's all just
so wonderfully unlikely,
and yet it's here.
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WILL SMITH: Eight
astronauts, with over 1,000
days in space between them,
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can tell us how
being up there...
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Helped them to truly
understand what
goes on down here.
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The weird connections.
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The near misses.
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The lucky breaks.
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That built our amazing world.
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The strangest place in
the whole universe might
just be right here.
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Oh, you ready
this morning, huh?
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Here you go.
25
00:02:26,646 --> 00:02:27,976
Let's have some fun.
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00:02:28,996 --> 00:02:29,795
There you go.
27
00:02:29,795 --> 00:02:31,838
We take Earth for granted.
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Come on, come on.
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Come on.
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We take so much for granted.
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Hey, come on.
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In fact, there's one thing
that comes so naturally we
don't even think about it.
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Breathing.
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00:02:46,835 --> 00:02:47,724
Yes, come on.
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00:02:47,724 --> 00:02:48,872
Come on, come on.
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00:02:51,971 --> 00:02:57,548
But if you knew even
half of what it takes to
make the oxygen we need,
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00:02:58,114 --> 00:03:00,364
it would take
your breath away.
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00:03:04,550 --> 00:03:06,522
You wanna know
about breathing?
39
00:03:06,619 --> 00:03:08,347
Ask this guy.
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00:03:13,058 --> 00:03:19,484
-My first spacewalk,
holding on to the
outside of the spaceship,
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00:03:20,866 --> 00:03:25,576
with nothing except the
sound of my own breathing.
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In my one hand is my entire
link with my own history.
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Everything that's human, every
story that's going on down
on the surface of the world,
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everybody I've ever met,
with the whole universe
in the other direction.
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00:03:51,630 --> 00:03:53,132
And then...
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I let go.
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That's when you really
appreciate the significance
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00:04:02,801 --> 00:04:05,677
of that thin blue line.
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00:04:12,422 --> 00:04:15,646
It contains everything
that's important to us.
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It contains life.
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00:04:24,000 --> 00:04:28,085
And then Houston called to
get back to work, I grabbed
back onto the handrail
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00:04:28,404 --> 00:04:31,783
but while I
was working, suddenly...
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I had a searing
pain in my left eye.
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Like somebody had
just stabbed me.
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My eye just snapped shut
and it started tearing up.
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00:04:44,379 --> 00:04:49,891
But the trouble is, without
gravity tears don't fall.
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The tear just gets
bigger and bigger.
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It got big enough that
it became a little lake of
water that went across the
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00:05:02,982 --> 00:05:04,397
bridge of my nose...
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00:05:04,887 --> 00:05:06,550
Into my other eye.
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00:05:08,657 --> 00:05:12,755
So I call down to
Houston, "Houston, I'm
having a problem here.
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I can't see.
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00:05:13,568 --> 00:05:15,521
I'm blinded in both eyes."
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00:05:16,093 --> 00:05:18,219
"What did
he just say?
He's blind?"
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00:05:18,662 --> 00:05:22,517
Houston looked at
what all the symptoms
were and said...
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00:05:23,564 --> 00:05:26,569
"Maybe it's the
worst-case problem.
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00:05:26,770 --> 00:05:29,364
You may have contamination
in your suit."
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00:05:31,673 --> 00:05:33,878
"And you're gonna
have to flush it out."
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00:05:36,127 --> 00:05:41,629
I reached up, turned
this little valve, popped
it and suddenly could hear,
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00:05:42,597 --> 00:05:44,456
"Ssssss, sssss".
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00:05:47,602 --> 00:05:54,317
As my precious supply
of oxygen hissed out into
the empty vacuum of space.
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00:05:55,977 --> 00:06:02,114
(heart monitor beeping)
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(baby crying)
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There is nothing more
natural than breathing.
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Yet as far as we know,
this is the only planet
where that happens.
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The only planet with an
oxygen-rich environment.
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Without that, life
would be something
very different indeed.
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♪ ♪
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WILL SMITH: This is
Felipe's favorite place.
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Even though the air is toxic.
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The ground spits acid, and
there is no fresh water.
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00:07:40,754 --> 00:07:43,050
No birds sing here.
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No insects fly.
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No plants grow.
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WILL SMITH: It's hard
to imagine anywhere
less inviting...
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00:08:18,592 --> 00:08:23,936
But Felipe has found
one thing that calls
this hellhole home.
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And it doesn't use oxygen.
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It lives in a lake of acid.
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♪ ♪
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00:09:00,901 --> 00:09:02,734
♪ ♪
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00:09:37,647 --> 00:09:41,926
-It's hard to
imagine sometimes just how
important oxygen is to us,
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00:09:42,445 --> 00:09:45,341
as the way to release energy.
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Every time I breathe
in, oxygen-rich air mixes
with the food I've eaten
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00:09:53,078 --> 00:09:55,205
and creates energy.
95
00:09:55,205 --> 00:10:00,066
Power that enables
larger, more complex
creatures to exist.
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00:10:08,878 --> 00:10:14,079
WILL SMITH: Our planet is
literally bursting with life,
so how on earth is there
97
00:10:14,079 --> 00:10:16,687
enough oxygen for everyone?
98
00:10:16,900 --> 00:10:20,086
The answer takes in some
pretty surprising stuff.
99
00:10:21,129 --> 00:10:27,170
Giant dust storms,
tiny snowflakes,
flying rivers;
100
00:10:27,568 --> 00:10:31,254
and the most important living
thing you've never heard of.
101
00:10:34,542 --> 00:10:37,293
But it begins in a desert.
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A desert made of salt.
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♪ ♪
104
00:11:08,743 --> 00:11:13,812
(chopping)
105
00:11:21,589 --> 00:11:24,757
(speaking in native language)
106
00:12:04,966 --> 00:12:09,686
WILL SMITH: The people
here rely on this
desert and so do we.
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00:12:13,975 --> 00:12:16,748
But not because of the salt.
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(wind)
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♪ ♪
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JEFF: Dust storms can
be pretty amazing when
you see them from space.
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00:12:58,292 --> 00:13:00,205
And sometimes they're huge.
112
00:13:00,573 --> 00:13:04,178
JERRY: You know, I had seen
little dust storms blowing
and you kinda look hard.
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00:13:04,178 --> 00:13:05,620
This you didn't
need to look hard.
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00:13:05,620 --> 00:13:12,844
It was a continent
of Northern Africa basically
obscured by thick brown dust.
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00:13:12,844 --> 00:13:15,869
And as I orbited, I
couldn't wait to come back.
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00:13:16,754 --> 00:13:20,779
And then when I did,
I saw that dust storm
that was over Africa now
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00:13:20,779 --> 00:13:22,514
over the Atlantic Ocean.
118
00:13:25,749 --> 00:13:29,924
And my next orbit
I see it hitting the
coast of South America.
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00:13:47,370 --> 00:13:52,745
-Every year about
27 million tons of that
African dust we can see
120
00:13:52,745 --> 00:13:59,119
from orbit drops out of the
sky into the Amazon Basin.
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00:14:00,250 --> 00:14:03,203
And it turns out,
it's the perfect fertilizer.
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♪ ♪
123
00:14:23,606 --> 00:14:31,326
And as they grow, the
plants and the trees turn
carbon dioxide into oxygen.
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00:14:39,789 --> 00:14:44,134
One single tree can
produce enough oxygen
to support two people.
125
00:14:45,428 --> 00:14:47,719
And the Amazon Rainforest...
126
00:14:48,765 --> 00:14:52,051
Is ten times the size of Texas,
127
00:14:53,696 --> 00:14:57,507
producing 20 times
more oxygen than all the
128
00:14:57,507 --> 00:15:00,679
people on the surface of the
Earth could consume.
129
00:15:03,313 --> 00:15:07,669
But, not one breath of
it leaves the Amazon.
130
00:15:24,868 --> 00:15:31,188
There are so many animals
living in the Amazon Basin
that the life there uses all
131
00:15:31,188 --> 00:15:33,027
that oxygen up.
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00:15:36,980 --> 00:15:41,260
WILL SMITH: For all these
years I've been thinking
the rainforest is the lungs
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00:15:41,260 --> 00:15:42,573
of the planet.
134
00:15:44,821 --> 00:15:49,712
Now sure, it makes a lot of
oxygen, but it uses it all.
135
00:15:51,194 --> 00:15:56,083
The rainforest does
help us breathe, but
not because of air.
136
00:15:57,634 --> 00:16:03,440
There's a river in the
Amazon, no, not that one,
there's another river,
137
00:16:03,767 --> 00:16:06,054
a river in the sky.
138
00:16:20,931 --> 00:16:25,121
WILL SMITH: For the most
part, I know this world from
standing on its surface.
139
00:16:26,737 --> 00:16:30,198
I mean, I've been
up to the top of the
Empire State Building,
140
00:16:30,444 --> 00:16:36,369
put my quarter in the scope,
and I've even jumped out
of planes a couple times.
141
00:16:37,581 --> 00:16:39,838
But that's nothing.
142
00:16:39,885 --> 00:16:45,292
The International
Space Station clocks
in at 1 million feet.
143
00:16:53,932 --> 00:16:58,571
CHRIS: Whenever there's a
free moment on the spaceship,
we try and get to the window
144
00:16:58,571 --> 00:16:59,909
to take pictures.
145
00:17:00,371 --> 00:17:06,141
And during my three
space flights, I took
about 45,000 photographs.
146
00:17:11,583 --> 00:17:14,501
And some parts of
the world are easy to
take pictures of...
147
00:17:16,020 --> 00:17:17,896
Like the outback of Australia.
148
00:17:18,909 --> 00:17:20,898
It's always a sunny day there.
149
00:17:21,541 --> 00:17:26,345
But there are parts of the
world that you almost never
get a good picture of.
150
00:17:27,781 --> 00:17:30,172
One of those is
the Amazon Basin.
151
00:17:30,518 --> 00:17:32,220
So it makes ya think...
152
00:17:33,254 --> 00:17:35,399
What's going on down there?
153
00:17:46,033 --> 00:17:51,036
♪ ♪
154
00:18:05,721 --> 00:18:10,420
WILL SMITH: For the last
ten years, Rosa has been
working in the Amazon,
155
00:18:10,420 --> 00:18:16,468
uncovering the surprising
way the rainforest helps
the whole planet breathe.
156
00:18:57,840 --> 00:19:00,426
WILL SMITH: She's not
kidding about special.
157
00:19:05,776 --> 00:19:09,723
This is the tallest structure
in all South America.
158
00:19:18,522 --> 00:19:22,277
Rosa has tried to climb
this tower twice before,
159
00:19:22,486 --> 00:19:24,690
but she's never
made it to the top.
160
00:20:07,672 --> 00:20:14,009
♪ ♪
161
00:20:24,722 --> 00:20:27,458
♪ ♪
162
00:20:27,458 --> 00:20:32,886
WILL SMITH: Now that's
a pretty cool climb, but
something else is rising too.
163
00:20:41,672 --> 00:20:44,511
If you could look
inside the trees...
164
00:20:46,170 --> 00:20:50,758
You'd see water sucked
up from the forest floor.
165
00:21:01,185 --> 00:21:06,221
♪ ♪
166
00:21:16,300 --> 00:21:21,136
♪ ♪
167
00:21:31,048 --> 00:21:35,791
♪ ♪
168
00:21:35,799 --> 00:21:40,691
When the water hits the
top, the combination
of sun and wind...
169
00:21:41,880 --> 00:21:44,774
Turns it into a mighty river.
170
00:21:45,890 --> 00:21:48,619
A flying river.
171
00:22:19,200 --> 00:22:23,409
CHRIS: This river of cloud
flows across South America,
172
00:22:23,594 --> 00:22:26,257
obscuring everything
beneath it...
173
00:22:30,568 --> 00:22:33,937
Until it runs
into a brick wall.
174
00:22:35,723 --> 00:22:40,258
5,500 miles long and
up to 4 miles high.
175
00:22:41,295 --> 00:22:42,788
The Andes.
176
00:22:45,932 --> 00:22:51,080
The clouds condense
into raindrops, which
then race down the slopes and
177
00:22:51,080 --> 00:22:53,886
flow directly back into
the Amazon Basin...
178
00:22:58,979 --> 00:23:02,613
Eroding the rock and
turning it into sediment...
179
00:23:04,718 --> 00:23:10,795
Until all those nutrients
are dumped into the ocean
and a whole other world.
180
00:23:32,846 --> 00:23:37,418
And waiting for
those sediments is an
extraordinary organism,
181
00:23:37,418 --> 00:23:39,915
four times thinner
than a human hair.
182
00:23:41,755 --> 00:23:44,028
It's called a diatom.
183
00:23:54,267 --> 00:23:58,238
Diatoms are the secret to
the Earth's oxygen supply.
184
00:24:02,242 --> 00:24:07,235
They use silica from
the ground up rock
to create new shells,
185
00:24:07,440 --> 00:24:09,783
which allows them
to reproduce.
186
00:24:12,118 --> 00:24:15,012
Their population
doubles every day...
187
00:24:16,826 --> 00:24:19,803
And they begin to
photosynthesize...
188
00:24:21,597 --> 00:24:26,070
Each one starting
to produce oxygen.
189
00:24:28,698 --> 00:24:30,159
WILL SMITH: Take a breath.
190
00:24:31,154 --> 00:24:32,747
Now take another.
191
00:24:33,556 --> 00:24:35,363
Now think about this:
192
00:24:35,491 --> 00:24:38,889
one of those breaths
was entirely provided by
193
00:24:38,889 --> 00:24:41,299
those little fellas
under the sea.
194
00:24:45,068 --> 00:24:50,778
-Looking at the oceans
from space, sometimes you
see a local area that's
195
00:24:50,778 --> 00:24:52,903
an entirely different color.
196
00:24:53,595 --> 00:24:57,423
And amazingly enough,
what you're looking at
is microscopic life.
197
00:24:59,614 --> 00:25:05,317
Diatom blooms that reflect
the light differently, so
that they show up from space.
198
00:25:07,453 --> 00:25:10,620
JEFF: Biggest one I think
I ever saw was huge.
199
00:25:10,620 --> 00:25:13,324
It covered hundreds of miles.
200
00:25:13,459 --> 00:25:14,715
JERRY: You know,
when you swim in the ocean
201
00:25:14,715 --> 00:25:17,077
you don't notice
the diatoms around you.
202
00:25:17,077 --> 00:25:21,393
But when you're
in space, you see the
vibrant colors of life.
203
00:25:23,052 --> 00:25:26,346
NICOLE: It's just so stunning,
the blues and the greens.
204
00:25:26,522 --> 00:25:31,249
But also, like, wow, those
things are keeping us alive.
205
00:25:34,808 --> 00:25:36,114
WILL SMITH: But you know what?
206
00:25:36,385 --> 00:25:40,888
Diatoms are important not
just because of what they
do when they're alive,
207
00:25:40,888 --> 00:25:43,946
but also what they
do once they're dead.
208
00:25:55,501 --> 00:25:59,090
CHRIS: I spent 166
days off the world.
209
00:26:00,144 --> 00:26:03,622
Underneath you,
the planet is silently,
210
00:26:04,044 --> 00:26:06,238
intimately revealing
itself to you,
211
00:26:06,238 --> 00:26:08,912
more and more,
every single time around.
212
00:26:11,764 --> 00:26:17,412
And from a spaceship, Earth
is definitely the Blue Planet.
213
00:26:20,006 --> 00:26:24,003
And pretty much
everywhere that there's
water, there's diatoms.
214
00:26:25,345 --> 00:26:29,410
There are trillions
of them in every ocean,
215
00:26:29,716 --> 00:26:33,089
and they can't all
rely on flying rivers.
216
00:26:34,654 --> 00:26:39,787
So diatoms around the world
have to get their nutrients
in different ways.
217
00:26:41,027 --> 00:26:45,293
Some about as far away
from tropical rainforests
as you can get.
218
00:26:57,844 --> 00:26:59,893
HEIDI (over radio):Okay guys, off you go.
219
00:27:10,723 --> 00:27:12,466
Okay, yeah, slow down...
220
00:27:18,431 --> 00:27:20,367
You can stop right there, yeah.
221
00:27:29,008 --> 00:27:30,608
(inaudible)
222
00:27:30,877 --> 00:27:31,946
MAN (over radio): Okay.
223
00:27:32,878 --> 00:27:35,415
WILL SMITH: These
glaciers are unusual.
224
00:27:35,415 --> 00:27:38,170
They can slide
in sudden spurts.
225
00:27:38,940 --> 00:27:44,623
Still too slow
to see in real time, but
fast enough to hear...
226
00:27:46,854 --> 00:27:48,461
if you know how to listen.
227
00:27:52,526 --> 00:27:55,894
(low frequency rumble)
228
00:27:58,373 --> 00:28:04,511
Sometimes they move
300 times faster than
their normal glacial pace.
229
00:28:06,814 --> 00:28:11,928
Heidi can hear them crushing
a huge amount of rock,
as they grind their way
230
00:28:11,928 --> 00:28:13,181
down the valley.
231
00:28:15,890 --> 00:28:20,775
And when ice meets sea,
it makes a familiar sound.
232
00:28:45,887 --> 00:28:48,782
WILL SMTH: The popping
is a heads up for the team.
233
00:28:49,457 --> 00:28:52,430
The ice face is
about to crash.
234
00:28:52,430 --> 00:28:54,693
(bubbles popping)
235
00:28:54,693 --> 00:28:58,392
HEIDI: I'm hearing
increased activity, you
need to come back, okay?
236
00:29:24,348 --> 00:29:27,416
(bubbles popping)
237
00:29:44,735 --> 00:29:46,368
Wow!
238
00:29:53,577 --> 00:29:56,745
♪ ♪
239
00:29:57,114 --> 00:29:59,767
WILL SMITH: Diatom
dinner time.
240
00:30:02,540 --> 00:30:06,798
Now sometimes these
glaciers move really fast,
dumping tons and tons of
241
00:30:06,798 --> 00:30:08,697
nutrients into the sea.
242
00:30:09,346 --> 00:30:10,475
Boom!
243
00:30:12,049 --> 00:30:15,670
Sparking a feeding frenzy
and a population explosion.
244
00:30:20,090 --> 00:30:25,718
But then, just as
quickly as it started,
dinner time is over.
245
00:30:26,864 --> 00:30:32,577
The glaciers come to a
grinding halt and lie dormant,
sometimes for decades.
246
00:30:33,337 --> 00:30:36,063
Boom becomes bust.
247
00:30:42,746 --> 00:30:48,915
-When the nutrients run
out, the blooms fade and
most of the diatoms die.
248
00:30:54,258 --> 00:30:58,265
Their carcasses slowly
fall to the ocean floor...
249
00:31:00,197 --> 00:31:03,887
Where they carpet it in a
layer half a mile thick.
250
00:31:05,970 --> 00:31:10,430
We call it 'marine
snow', and that's exactly
what it looks like.
251
00:31:11,275 --> 00:31:12,865
Snowflakes.
252
00:31:15,746 --> 00:31:18,243
But unlike snowflakes,
253
00:31:18,380 --> 00:31:24,600
they never melt and
over millions of
years the sea beds rise...
254
00:31:27,057 --> 00:31:33,998
The ocean levels fall
and the ocean floor
becomes a salty desert.
255
00:31:37,935 --> 00:31:41,130
The desert that blows all
the way to the Amazon...
256
00:31:43,574 --> 00:31:45,599
That was once a sea bed.
257
00:31:45,976 --> 00:31:49,692
And the dust that makes
the rainforest grow?
258
00:31:51,282 --> 00:31:53,346
Diatom shells.
259
00:31:58,556 --> 00:32:03,193
It just goes to show how
incredibly interlinked
everything is.
260
00:32:05,296 --> 00:32:09,552
-There is absolutely nothing
on one side of the planet
that isn't connected in
261
00:32:09,552 --> 00:32:12,763
some way with the other
side of the planet.
262
00:32:16,340 --> 00:32:21,270
MAE: It's astounding how
all the systems down there
must work together in order
263
00:32:21,270 --> 00:32:22,657
for us to breathe.
264
00:32:30,120 --> 00:32:32,380
WILL SMITH: Which is great...
265
00:32:33,123 --> 00:32:36,379
But you only have to mess
with oxygen a little bit
266
00:32:36,379 --> 00:32:39,771
for things to start
going really wrong.
267
00:32:44,188 --> 00:32:47,375
ee, two, one.
268
00:32:48,693 --> 00:32:51,405
Lift off, lift off.
269
00:32:53,631 --> 00:33:02,159
♪ CHRIS: Though I've
flow 100,000 miles,
I'm feeling very still. ♪
270
00:33:03,408 --> 00:33:10,860
♪ Planet Earth is blue and
there's nothing left to do. ♪♪
271
00:33:19,791 --> 00:33:22,673
I love the fact that the
Earth has a blue sky.
272
00:33:27,765 --> 00:33:31,269
You can look up
and all of the various
shades of it, you know,
273
00:33:31,269 --> 00:33:33,792
the deepness of it and
the way the colors change
274
00:33:33,792 --> 00:33:39,408
close to the horizon
and that's everything
that we breathe,
275
00:33:39,408 --> 00:33:40,853
and keeps us alive.
276
00:33:42,847 --> 00:33:46,993
And you sort of fool
yourself into thinking,
it's really, really deep.
277
00:33:47,340 --> 00:33:49,737
Like it goes on
sort of forever.
278
00:33:53,947 --> 00:33:59,361
But when you're on
board a spaceship and
you look straight down,
279
00:33:59,905 --> 00:34:02,325
you hardly see the
atmosphere at all.
280
00:34:03,690 --> 00:34:08,332
It's only when you look
to the horizon that you
can see just how thin our
281
00:34:08,332 --> 00:34:10,335
atmosphere truly is.
282
00:34:11,099 --> 00:34:14,578
The thinnest of
delicate blue lines.
283
00:34:16,800 --> 00:34:21,837
It's because the gravity of
the Earth is pulling every
single one of those air
284
00:34:21,837 --> 00:34:25,073
molecules and pressing
it against the ground.
285
00:34:26,008 --> 00:34:29,254
But the further up you
go, the thinner it gets.
286
00:34:30,357 --> 00:34:34,153
It's sort of like if you
pluck a string on a guitar...
287
00:34:35,840 --> 00:34:38,140
When does the note stop?
288
00:34:39,110 --> 00:34:41,892
And our atmosphere is
like that guitar string.
289
00:34:42,647 --> 00:34:46,069
It just gets less and
less the higher you go.
290
00:34:48,188 --> 00:34:52,008
But what's surprising is,
how fast that happens.
291
00:34:53,359 --> 00:35:00,563
That blue line is so thin
that you can walk to where
the oxygen starts to run out.
292
00:35:09,142 --> 00:35:14,979
♪ ♪
293
00:35:24,257 --> 00:35:30,461
♪ ♪
294
00:35:32,672 --> 00:35:40,153
WILL SMITH: Being a doctor
in La Rinconada means that
you have 25,000 patients,
295
00:35:41,081 --> 00:35:45,839
living year-round in a town
as high as Everest base-camp.
296
00:36:27,266 --> 00:36:33,577
WILL SMITH: When Spanish
settlers first arrived here,
the lack of oxygen killed many
297
00:36:33,577 --> 00:36:35,557
of their babies at birth.
298
00:36:44,984 --> 00:36:47,522
Yet, people still live here.
299
00:36:49,956 --> 00:36:51,800
They still work here.
300
00:36:53,934 --> 00:36:59,146
Because in these mountains,
there's something that's
lured people through history.
301
00:37:09,182 --> 00:37:11,671
The promise of gold.
302
00:37:21,795 --> 00:37:23,524
This is the limit though.
303
00:37:24,398 --> 00:37:27,621
Humans can't live any higher.
304
00:37:32,739 --> 00:37:36,846
CHRIS: Without enough
oxygen, our organs can
start shutting down...
305
00:37:39,012 --> 00:37:42,189
And it can happen
surprisingly quickly.
306
00:37:43,850 --> 00:37:49,805
So astronauts actually
train to recognize their own
symptoms of a lack of oxygen.
307
00:37:49,805 --> 00:37:51,568
Of hypoxia.
308
00:37:52,347 --> 00:37:55,655
In my case,
there's a slight dizziness.
309
00:37:55,655 --> 00:37:58,303
My vision starts to get
a little bit narrow.
310
00:37:58,303 --> 00:38:02,011
The colors become
a little more brittle,
311
00:38:02,185 --> 00:38:04,630
like maybe a certain
type of painter's way
312
00:38:04,630 --> 00:38:07,222
of using only the
primary colors.
313
00:38:07,222 --> 00:38:09,572
Sound changes a little for me.
314
00:38:09,572 --> 00:38:14,918
It becomes a little bit
more staccato, sort of a
snappy sound to everything
315
00:38:14,918 --> 00:38:16,419
that's going on around me.
316
00:38:16,419 --> 00:38:18,385
And as soon as I put all
those things together,
317
00:38:18,385 --> 00:38:21,255
I realize I'm running
out of oxygen.
318
00:38:21,843 --> 00:38:24,096
Houston, I'm having a
serious problem here.
319
00:38:24,096 --> 00:38:24,970
Serious problem.
320
00:38:25,019 --> 00:38:26,376
Blinded in both eyes.
321
00:38:26,376 --> 00:38:27,557
"What did he just say?"
322
00:38:27,749 --> 00:38:30,309
Can't see, purge your oxygen.
323
00:38:30,309 --> 00:38:32,506
My precious oxygen.
324
00:38:33,588 --> 00:38:40,125
I wasn't really sure how that
was gonna turn out, but as
the oxygen hissed through and
325
00:38:40,125 --> 00:38:45,270
out my purge valve,
the tears that were coming
out of my tear ducts
326
00:38:45,744 --> 00:38:48,062
slowly started evaporating.
327
00:38:49,160 --> 00:38:54,699
My vision began to return,
bit by bit, and what had
caused it was pretty simple.
328
00:38:54,699 --> 00:39:00,779
It was the anti-fog on my
visor had been picked up by
floating water in my suit and
329
00:39:00,779 --> 00:39:02,212
gotten into my eye.
330
00:39:04,108 --> 00:39:09,670
With confidence, I could
reach up and close the
valve and stop venting my
331
00:39:09,670 --> 00:39:13,329
precious oxygen out to
the rest of the universe.
332
00:39:17,555 --> 00:39:25,473
It's vital that we get
enough oxygen; but too much
can be just as dangerous.
333
00:39:37,642 --> 00:39:41,714
You see it when you blow
on a little tiny fire.
334
00:39:42,504 --> 00:39:49,420
Just blowing that little
bit of oxygen turns that
tiny spark into a flame.
335
00:39:52,755 --> 00:39:56,335
And it's exactly the same
for the whole planet.
336
00:40:00,515 --> 00:40:04,205
A rise in oxygen levels
can threaten life on Earth.
337
00:40:11,860 --> 00:40:16,385
WILL SMITH: 300 million years
ago, there was a lot more
oxygen in the atmosphere.
338
00:40:16,598 --> 00:40:19,857
So much that the
planet just burned.
339
00:40:24,406 --> 00:40:27,249
But don't think that
danger's all in the past.
340
00:40:30,111 --> 00:40:32,777
Too much oxygen and we fry.
341
00:40:35,417 --> 00:40:37,951
Too little and we choke.
342
00:40:39,387 --> 00:40:43,930
We're walking a tightrope
with death on either side,
343
00:40:43,930 --> 00:40:45,689
and just like a tightrope walker
344
00:40:45,689 --> 00:40:49,152
the only thing that can
save us is balance.
345
00:41:01,543 --> 00:41:04,774
CHRIS: Balance is crucial...
346
00:41:06,377 --> 00:41:10,578
For the makeup of
the atmosphere, and
for life itself.
347
00:41:13,818 --> 00:41:18,536
The thing is, we don't
fully understand how
the Earth manages it.
348
00:41:20,024 --> 00:41:26,374
Despite diatoms having
to wait for glaciers and
South American trees having
349
00:41:26,374 --> 00:41:28,403
to wait for African dust,
350
00:41:28,593 --> 00:41:32,946
and despite the fact
that human population has
been steadily increasing,
351
00:41:33,480 --> 00:41:39,278
the relative amount of
oxygen in the atmosphere has
been surprisingly constant.
352
00:41:42,080 --> 00:41:48,934
MIKE: For millions of
years, oxygen has made up
20.95% of our atmosphere.
353
00:41:48,934 --> 00:41:53,351
MAE: Exactly 20.95%.
354
00:41:54,425 --> 00:42:00,107
JERRY: Everything's somehow
buffering out and keeping
things pretty darn stable.
355
00:42:09,407 --> 00:42:15,611
♪ ♪
356
00:42:25,289 --> 00:42:30,760
♪ ♪
357
00:42:43,241 --> 00:42:49,278
(chanting inaudibly)
358
00:43:19,677 --> 00:43:25,891
WILL SMITH: 100,000
Buddhists gather here for
the festival of Magha Puja.
359
00:43:31,189 --> 00:43:33,412
Each one lights a candle.
360
00:43:34,290 --> 00:43:39,740
They celebrate with their
flames at a temple made
from a million Buddha's.
361
00:43:55,980 --> 00:44:01,751
(chanting inaudibly)
362
00:44:10,561 --> 00:44:16,932
♪ ♪
363
00:44:44,862 --> 00:44:49,616
WILL SMITH: Every breath we
take, 16 breaths a minute,
364
00:44:51,369 --> 00:44:54,032
23,000 breaths a day,
365
00:44:54,372 --> 00:45:00,945
every inhale, every exhale
of that precious oxygen
366
00:45:01,279 --> 00:45:08,818
couldn't happen without
earth, water, wind and fire.
367
00:45:18,663 --> 00:45:24,813
The whole planet works as one
to create that thin blue line.
368
00:45:28,925 --> 00:45:35,611
The mark of a living
world we've seen nowhere
else in the universe.
369
00:45:43,836 --> 00:45:47,738
-I really wish that
everyone could see the
world the way that I've
370
00:45:47,738 --> 00:45:49,249
had a chance to see it.
371
00:45:54,798 --> 00:46:00,549
You have to wrench yourself
away from the wonder
and the strangeness of it.
372
00:46:04,808 --> 00:46:08,125
And the beauty of space
flight is you come back
373
00:46:08,125 --> 00:46:13,649
with a real sense that
this Earth is one place.
374
00:46:13,722 --> 00:46:16,734
One shared place.
375
00:46:19,670 --> 00:46:21,803
We're all crew mates
on the same ship.
376
00:46:28,598 --> 00:46:35,871
WILL SMITH: We're not just
rare, we're not just special,
we are unique and that's what
377
00:46:35,871 --> 00:46:39,781
makes this One Strange Rock.
378
00:46:48,919 --> 00:46:51,517
Next time on One
Strange Rock...
379
00:46:51,955 --> 00:46:56,620
Our paradise planet came from
collisions, carnage and chaos.
380
00:46:57,267 --> 00:47:00,020
And the impact is
still shaping us.
381
00:47:09,513 --> 00:47:11,513
Captioned by Cotter
Captioning Services.
382
00:47:12,513 --> 00:47:14,513
Synced by JohnCoffey_09
31833
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