College students, rocket scientists and math enthusiasts around the world are celebrating Pi Day.

Math enthusiasts around the world, from college kids to rocket scientists, celebrate Pi Day on Thursday, which is March 14 or 3/14 — the first three digits of an infinite number with many ...

Math enthusiasts around the world are celebrating Pi Day today, which is March 14 or 3/14.

What is Pi Day, and why do we celebrate it every March 14? Here's what to know as math lovers around the world mark Pi Day.