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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Inside NASA's astronaut bootcamp and the grueling new training regimen for deep space. Plus, ten young geniuses shaking up science today, one writer's quest to analyze every man-made chemical in her body and more.
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