First X-Prize Flight a Success for SpaceShipOne

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Detecting the Earth's Hum for What It Is

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NASA Genesis Update

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Zero Gravity Flight

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Zero Gravity Preview

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To the Moon: Putting a Pricetag on Space Travel

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Slate's Explainer: Genesis Probe and Solar Wind

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NASA Probes Crash of Genesis Spacecraft

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Genesis Space Capsule Crashes in Desert

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E.T. Might Prefer a Letter

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Astonomers Find Three New Planets

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New, Earth-Like Planets Found Orbiting Other Stars

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New Debate over How to Contact Alien Life

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