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Trump’s Greenland ambitions could wreck 20th-century alliances that helped build the modern world order

French Gen. Jean de Rochambeau and American Gen. George Washington giving final orders in late 1781 for the battle at Yorktown, where British defeat ended the War of Independence.Pierce Archive LLC/Bu...

Donald Heflin, Executive Director of the Edward R. Murrow Center and Senior Fellow of Diplomatic Practice, The Fletcher School, Tufts University - avatar Donald Heflin, Executive Director of the Edward R. Murrow Center and Senior Fellow of Diplomatic Practice, The Fletcher School, Tufts University

Are there thunderstorms on Mars? A planetary scientist explains the red planet’s dry, dusty storms

Mars doesn't get rain like Earth does, but dust storms are common on the red planet. NASA/JPL-Caltech/Univ. of ArizonaCurious Kids is a series for children of all ages. If you have a question you&rsqu...

Nilton O. Rennó, Professor of Climate and Space Sciences Engineering, University of Michigan - avatar Nilton O. Rennó, Professor of Climate and Space Sciences Engineering, University of Michigan

An ultrathin coating for electronics looked like a miracle insulator − but a hidden leak fooled researchers for over a decade

Tiny insulating layers inside electronics help store charge so computers can run smoothly. bee32/iStock via Getty ImagesWhen your winter jacket slows heat escaping your body or the cardboard sleeve on...

Mahesh Nepal, Ph.D. Student in Electrical Engineering, Binghamton University, State University of New York - avatar Mahesh Nepal, Ph.D. Student in Electrical Engineering, Binghamton University, State University of New York