Voting just closed on NASA's version of American Idol. For the past month, people have been able to vote online for the next research subject for the Hubble Telescope. Now the results are in.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.
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