The solution to a 35-year-old puzzle has finally been found, by chance, in the archives of the Smithsonian Institution. The top-secret code could be used to solve Kryptos, an infamously enigmatic ...

Every year in (most of) the U.S., we move our clocks ahead one hour in the spring and one hour back in the fall. That time in between is called daylight saving time. (That’s right, drop that “s.”) As ...