As the Jet Propulsion Laboratory (JPL) builds the next Mars rover -- this one is named Curiosity -- to deploy to the red planet in the fall of 2011, they’re having a little fun with it. Back in 2007 when the Curiosity team was putting together the rover, its wheel cleats had a raised pattern with the letters “JPL,” leaving a little stamp of the rover’s birthplace everywhere it rolled. “At the t...
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