Photos: X Prize's rocket fest

Denver-based Micro-Space couldn't compete in the lunar challenge for the second time in two years because it wasn't able to meet FAA safety requirements.

Led by aerospace engineer Richard Speck (pictured here), the team's craft is powered by a bi-propellant engine (fueled partly by hydrogen peroxide) and comprised of several tubes made of Kevlar, graphite and epoxy. It hasn't left the ground "but we've successfully tested the motors," said engineering technician Bruce Bahnmiller.

Credit: Stefanie Olsen/News.com

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