NASA Announces Three New Centennial Challenges

"NASA announced three new Centennial Challenges Tuesday, with an overall prize purse of $5 million. NASA's Centennial Challenges are prize competitions for technological achievements by independent teams who work without government funding. NASA sponsors prize competitions because the agency believes student teams, private companies of all sizes and citizen-inventors can provide creative solutions to problems of interest to NASA and the nation," said Bobby Braun, the agency's chief technologist."