This article is for students grades 5-8. Mass distribution affects everything from galaxy shapes to aircraft design to planetary rotation. It’s used to map stars in our universe, figure out what planets are made of, and even to determine how luggage is loaded onto an airplane. Mass distribution can be a tricky thing to understand. […]

This article is for students grades 5-8. What is Pi? Pi is a number. You might know it as 3.14 or the symbol π. But it’s way more than that! What Makes Pi Special? Pi is an irrational number. That means it goes on forever and it never repeats its sequence of numbers. Pi has […]