The writer reluctantly agreed to a non-monogamous marriage, but the way she felt about her husband’s new girlfriend completely surprised her. By Anna Martin Helena de Groot thought she had decided not ...

Mar. 4, 2026 A new ultrathin photodetector from Duke University can sense light across the entire electromagnetic spectrum and generate a signal in just 125 picoseconds, making it the fastest ...

How brilliant a military leader are you? One of the most important battles of the U.S. Civil War -- and indeed of all U.S. history -- was the battle of Gettysburg. During the three days of July 1-3, ...