Not only will Friday’s total lunar eclipse be a Blood Moon, but it also lands on Pi Day! 3.14— or Pi— is a mathematical constant used in complex calculations by engineers, artists ...

A “pi in the sky” lunar eclipse event — a mathematics lesson and a “blood moon” skywatching extravaganza — is teeing up in ...

Pi is used to calculate things like the circumference of a circle or the volume of a sphere. In a real-world application, ...