Celebrate Pi Day and read all about how this number pops up across math and science on our special Pi Day page. Grab something circular, like a cup, measure the distance around the circle, and divide ...

A 3,700-year-old Babylonian clay tablet reveals the oldest known trigonometric table, showing ancient scribes used precise triangle ratios.

In Japan, over 76,000 people living alone were found dead in 2024, with about three in four such cases involving those aged 65 or older. And this "lonely death" crisis is set to worsen as the number ...