If our solar system has a Hell, it's Venus. The air is choked with foul and corrosive sulfur, literally brimstone, heaved from ancient volcanoes and feeding battery-acid clouds above. Although the second planet is a step farther from the sun than Mercury, a runaway greenhouse effect makes it hotter–indeed, it's the hottest of the nine planets, a toasty 900
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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?