Will Mars Rover Survive the Crater of Doom?

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Critics Call 'Yucca Mountain Johnny' Propaganda

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U.S. Nuclear Warhead Numbers Are Kept Secret

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NASA Chief Assailed for Climate Comments

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Browns Ferry Nuclear Plant Refurbished and Running

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North Carolina Family Takes Carbon Challenge

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Cost of New Warheads Faulted in Tough Review

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Test of Einstein's Theory of Gravity Hits a Snag

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Sneaky Parasite Attracts Rats to Cats

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The World's Largest Particle Accelerator

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Massive Particle Accelerator Revving Up

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Researchers Identify Gene Affecting Dog Size

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When Brain Shuts Down, Legs Kick into Overdrive

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SpaceX Makes Progress with Rocket Test

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