Photos: Chasing the X Prize Cup
Summary: Three competitions with $2.5 million in prizes for future space technology highlight this year's Wirefly X Prize Cup.
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Lunar Lander Challenge
For the Vertical Rocket Challenge, vehicles are required lift off to 150 feet above the ground and hover for 90 seconds before landing on a smooth surface 100 meters away. Three teams will compete for the $500,000 prize.
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