Planet

<b>FOUND IN SPACE:</b> An artist’s rendering from NASA’s Jet Propulsion Laboratory shows planets orbiting 55 Cancri. The newfound planet is similar to Saturn and not likely to support life.

( AFP / Getty Images / November 9, 2007 )

FOUND IN SPACE: An artist’s rendering from NASA’s Jet Propulsion Laboratory shows planets orbiting 55 Cancri. The newfound planet is similar to Saturn and not likely to support life.

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The 20 most-visited national parks in the U.S.
The 20 most-visited national parks in the U.S.

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Calculate your savings when you replace standard light bulbs
CALCULATOR: Your green light to savings
Check out this quick and easy calculator. It'll help you estimate how much money and carbon dioxide you'll save when you replace standard light bulbs with compact fluorescent light bulbs.

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