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
Science
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
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
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
With Better Data On Climate Change, Scientists Predict Extreme Conditions Earlier
Frigid temperatures arrived in the Upper Midwest with a polar vortex. In Chicago on Wednesday, Marius Radoi walked along a freezing Lake Michigan. Joshua Lott/AFP/Getty Images hide caption
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
A 13-Year-Old Science Entrepreneur Wants To Bring Her Water Testing Device To Market
Laura Ogden, Jack Hannan, and Dr. Jones the dog. Courtesy of Laura Ogden hide caption
A new study points to the connections between climate change, lack of proper nutrition and obesity. Rick Elkins, Josh Sommers, Chris Minihane/Getty Images hide caption
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
How California's Worst Oil Spill Turned Beaches Black And The Nation Green
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