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(Music)

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>The best thing about being a scientist is you're constantly learning. There's never a

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time where you say, "Oh, I understand
everything about the universe." There are

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new discoveries coming in; there are new
missions that are launching. Right now in

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my job I'm getting ready for a
spacecraft to arrive at Jupiter,

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and we're building another one to go off
to Mars in a couple of years. We're about to

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build the biggest space telescope ever
launched, and anywhere we go we're going

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to find out something new about the
universe and I'm going to learn

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something new and I'm one of these people
that every time I learn something new

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there's kind of this rush of joy. I have
joy to look forward to. I don't know

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exactly what we're going to discover,
but we are going to discover something wonderful.