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Here's how scientists are bracing themselves for the moment aliens make contact; and what form it might take
After landing successfully, the latest craft to reach the Red Planet begins to transmit data
In celebration of its 18th birthday, NASA has released the largest collection of Hubble images ever.
Will U.S. household adoption of Blu-ray players meet analysts 2008 estimates?
Will the average gasoline price in California break $5 per gallon this summer?