Despite that, rates of fusion surgery in the U.S. ballooned more than 200 percent throughout the 1990s, and the number of ...

U.S. stock markets declined for a third consecutive day on Thursday, September 25, 2025. The S&P 500 fell 0.5% to 6,604.72, ...

Two nurses had a similar amount of sleep, but one was alert, and the other one was tired. A mathematician came up with an idea for solving why.

The Irish mathematician and physicist William Rowan Hamilton, who was born 220 years ago last month, is famous for carving some mathematical graffiti into Dublin's Broome Bridge in 1843.

From tech titans and international hotel brands to down-home Texas fare and online car shopping, the matchups run from familiar to delightfully unexpected -- plus plenty of banter.

These days, it seems like each week another artificial intelligence startup announces it’s surpassed $100 million in ...

Fall brings stronger weather systems to southern Colorado. Here's how to use boiling water and ice to explain atmospheric pressure and precipitation.