Winter should be winding down, and if you're in the Northeast, you might even think that's Spring up ahead. But don't get too comfortable. It’s still cold and snowy in much of the U.S. and, if the forecasts are correct, there's more to come. Storms are threatening the Midwest as we speak, and even sunny Phoenix has a “freeze warning”. So here’s some gear to keep you warm—and your driveway clear—during these last chilly days of winter.
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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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