Entering the control room at Three Mile Island Unit 1 is like stepping back in time. Except for a few digital screens and new counters, much of the equipment is original to 1974, when the plant began generating electricity.
Scientists find that rice grown under elevated carbon conditions loses substantial amounts of protein, zinc, iron and B vitamins, depending on the variety.
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People walk through a flooded street in in Miami Beach, Fla., in 2015. The city is eyeing $500 million in infrastructure upgrades, installing 80 new pumps over a decade to redirect floodwaters back to the ocean.
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The Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) mission, shown in an artist's rendering, will measure tiny fluctuations in Earth's gravitational field to show how water moves around the planet.