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NASA's rover Curiosity crawls up the side of Vera Rubin Ridge on Mars' surface in January 2018. Mount Sharp — a 3-mile-high mountain — can be seen in the distance. MSSS/ NASA/JPL-Caltech hide caption

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MSSS/ NASA/JPL-Caltech

Exploring The Mysterious Origins Of Mars' 3-Mile-High Sand Pile

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After scientists screened over 8,000 genes in fruit flies, only one, which hadn't been described before, triggered sleepiness. Andrew Syred/Science Source hide caption

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Andrew Syred/Science Source

Frank Lettiere's eyebrows and eyelashes froze after his walk along Lake Michigan's Chicago shoreline Wednesday. Frostbite warnings were issued for parts of the U.S. Midwest as temperatures plunged. Joshua Lott/AFP/Getty Images hide caption

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Joshua Lott/AFP/Getty Images

Medical Effects Of Extreme Cold: Why It Hurts And How To Stay Safe

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Meteorological Electronics Technicians Christopher Bieschke and Kirk Wilson replace a wind sensor atop a 30-foot tower at an Oklahoma Mesonet station near Shawnee, Okla. Joe Wertz/StateImpact Oklahoma hide caption

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Joe Wertz/StateImpact Oklahoma

With Better Data On Climate Change, Scientists Predict Extreme Conditions Earlier

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13-year-old Gitanjali Rao with her lead detection device named Tethys. Rao was named America's top young scientist in 2017 and one of Forbes' 30 under 30 in 2019. Michael Elizabeth Sakas/CPR News hide caption

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Michael Elizabeth Sakas/CPR News

A 13-Year-Old Science Entrepreneur Wants To Bring Her Water Testing Device To Market

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Ariel Davis for NPR

From Fruit Fly To Stink Eye: Searching For Anger's Animal Roots

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Cleanup workers rake oil-soaked hay along a Santa Barbara beach in 1969, after an oil spill that was then the largest in U.S. history. Bettmann/Getty Images hide caption

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Bettmann/Getty Images

How California's Worst Oil Spill Turned Beaches Black And The Nation Green

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A wild boar at at an enclosure set up by forest rangers in a northwestern district of Berlin in 2017. Denmark is building a $12 million fence in an effort to keep out wild boars from Germany. Tobias Schwarz/AFP/Getty Images hide caption

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Tobias Schwarz/AFP/Getty Images

To Keep African Swine Fever Out, Denmark Is Planning A Southern Boar(der) Fence

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Shore Fire Media/Atomic Entertainment

New Netflix Show 'Brainchild' Makes Science Fun For Kids

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Almost 10,000 migratory crows have descended on Nampa, Idaho, for the past three winters. A task force is deploying drones, lasers and even a live hawk to try to divert the annual migration. Winfried Rothermel/AP hide caption

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Winfried Rothermel/AP