Orbit Observation: A ‘Pi in the Sky’ Math Challenge

A Prime Year for NASA's Pi Day Challenge

Learn more about about pi, the history of Pi Day, and the science behind the 2024 NASA Pi Day Challenge.

Pi in the Sky Lessons

Here's everything you need to bring the NASA Pi Day Challenge into the classroom.

NASA Pi Day Challenge

The entire NASA Pi Day Challenge collection can be found in one, handy collection for students.

How Many Decimals of Pi Do We Really Need?

While you may have memorized more than 70,000 digits of pi, world record holders, a JPL engineer explains why you really only need a tiny fraction of that for most calculations.

18 Ways NASA Uses Pi

Whether it's sending spacecraft to other planets, driving rovers on Mars, finding out what planets are made of or how deep alien oceans are, pi takes us far at NASA. Find out how pi helps us explore space.

10 Ways to Celebrate Pi Day With NASA on March 14

Find out what makes pi so special, how it’s used to explore space, and how you can join the celebration with resources from NASA.

Infographic: Planet Pi

This poster shows some of the ways NASA scientists and engineers use the mathematical constant pi (3.14) and includes common pi formulas.

Downloads

Can't get enough pi? Download this year's NASA Pi Day Challenge graphics, including mobile phone and desktop backgrounds:

Modeling Crustal Folds

Students use playdough to model how Earth’s crust is bent and folded by tectonic plates over geologic time.

Making Topographic Maps

Students draw and interpret topographic maps while learning about technology used to map Earth's surface, the seafloor, and other worlds.

18 Maneras en Que la NASA Usa Pi

Pi nos lleva lejos en la NASA. Estas son solo algunas de las formas en que pi nos ayuda a explorar el espacio.