Researchers found 100+ volcanoes beneath Antarctic ice along the active West Antarctic Rift System, dating back to the dinosaur age.
Fourteen-year-old Nemanja Milošević swam for the fifth time and plans to continue swimming in coming years.
Heavy snow and freezing rain made many northern England roads, including the A66, impassable, causing widespread closures.
Utilizing data from the European Space Agency's CryoSat-2 and NASA's ICESat-2 satellites, researchers mapped changes in the ice sheet's thickness with unprecedented accuracy.
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