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(music)

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(Jim Garvin) Have you ever wondered why satellites look the way they do? Some are as big as

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a bus with giant solar panels and
bristling with cameras and detectors.

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Others are as small as a football with a
single instrument. Well satellites have

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to be designed for a purpose. It's all
about the how. It's all about the why.

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Scientists and engineers get together to
design satellites for the purpose of

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exploring space. It's kind of like
building a science laboratory without

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people. How exactly do we build the right
spacecraft to capture the observations

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we need? How can we make sure the
satellite will work without breaking or

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falling apart? That's the job of the
scientists and engineers who work in the

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Mission Design Lab: to design for that
purpose so they'll work in space.

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(music)