Simply put, pi is a mathematical constant that expresses the ratio of a circle's circumference to its diameter. It figures into numerous formulas used in physics, astronomy, engineering and other ...

Happy Pi Day! Today is 3.14. For those who were not fortunate enough to be educated in the Arlington Public Schools system ...

Below are a collection of images captured from around the world.

Iowa is often referred to as flyover country, but it has much more to offer. The Hawkeye State boasts four seasons with different things to do all year long. During the warmer ...

TIME World's Greatest Places selections were based on factors including relevance, innovation, impact and success.

The stopgap funding bill has already passed in the House and faces a late deadline tonight in the Senate to avoid a shutdown. While Republicans have a majority in the Senate, they’ll need some ...