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(music)

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- We all live here.

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We want to know what's happening

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and why it's happening the way that it is.

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Space offers us a birds
eye view of our planet.

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- The satellites that we have today

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are so much more advanced.

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It's like living in science
fiction when you think about it.

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Today, we can do everything
from that big picture view

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to zooming down in a small location.

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- Well, the earth is a system.

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Everything is connected.

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The atmosphere, the oceans, the air,

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all of that has to work together.

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So there is always a balance, you know,

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that exists around earth,

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and we can measure it, we can see it.

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- Sometimes we think of the polar regions

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as these remote places
disconnected from us

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and nothing could be
further from the truth.

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Changes in the sea ice cover change how

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our atmosphere works, changes our weather

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all over the planet, especially
here in North America.

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And changes in the land ice,
the glaciers of the Arctic,

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and of Greenland, and of Antarctica,

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they change our local sea levels.

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And one of the best ways to study those,

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is by satellite, because
you're trying to cover

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continental scale areas.

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- If an impending storm is coming in

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we know that, usually days in advance.

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And so these early warning
systems and observations

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all come from NASA
technologies that have been

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launched to space.

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- We can from space see
how the earth is changing.

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We have views from
Nevada and how Las Vegas

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has impacted the area
around through the years

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and how the sprawl has
taken over the desert.

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So it is just an amazing way
to see a rapid progression

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of those images and how
the landscape changes

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because of human action.

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(bouncy techno music)

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- Here it is. This little blue marble

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that's really a spaceship.

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And all of us are on it.

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And everybody you've ever known,

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everybody you care about is
down on that little planet

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and then you extrapolate that and go,

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wow, every human existence
that has ever happened

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in all of time is down
on this little thing

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that I went around in 90 minutes.

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And also, the earth seems very finite.

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And that more people that see our planet

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from that vantage point,

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the better we'll be to each other

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and maybe to our home planet.

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- Earth is the only planet
that we know that hosts life,

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therefore we absolutely must protect it

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and NASA is the agency that can understand

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what's causing the changes to the earth

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in a way that can inform policymakers

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so they can make good decisions.

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- First and foremost, we have
to understand the planet that