The outcome of the DARPA Grand Challenge was arguably disappointing: autonomous vehicles went farther than ever before, but the distance was considerably short of the goal--by about 200 miles. The pictures of the DARPA Grand Challenge, on the other hand, impress with the sheer variety of vehicles in the competition. Come behind the gates for a closer look at some of the DARPA Challengers in action (and, sometimes, out of action).
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Science is reinventing play, from extreme sports to gamification to ridiculous roller coasters to the playgrounds of tomorrow, and this issue is chock full of fun. Also, on a less fun note: Did global warming destroy my hometown?