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One day after the last space shuttle flight, NASA turned its attention to Mars. It said today the rover it plans to launch in November will land inside a crater that's as big as Connecticut and Rhode Island put together.

Scientists hope the new machine will solve a mystery: Has there ever been life on Mars? CBS News correspondent John Blackstone reports.

A $2.5 billion, car sized robot nicknamed "Curiosity" -- designed and built at the Jet Propulsion Lab in Pasadena, Calif. is NASA's newest unmanned explorer. Officially it's called the "Mars Science Laboratory."

The three earlier rovers confirmed that Mars once had enough water to create oceans. Curiosity will search for signs of life.

NASA biologist Bob Koukol says all the images from Mars have hinted at the possibilities but don't provide proof.

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Category: Science