There are lots of unsolved mysteries in the world of math, and many of them start off with a deceptively simple premise, like ...

A 31-year-old Korean mathematician solved one of the oldest math puzzles and was recognized as one of Scientific American’s ...

Matthew Perry's death. Tropical Storm Hilary. A mass shooting at a Lunar New Year festival: These were some of California's ...

Here are the highlights of the year’s AI breakthroughs and discoveries that could set the stage for an even more ...