Mining oxygen and water from soil on celestial bodies was the challenge as 700 college students from around the world gathered for the Lunabotics Mining Competition at the Kennedy Space Center in Florida. The entrant robots are put to work on waste soil from road construction projects that is similar to lunar dust. "The amount of soil mined is just one way to earn points. The less the robot weighs, the higher the score. Robots that are dust resistant and use very little bandwidth also get higher scores," said Robert Mueller, a senior technologist at the space center.

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