Here is what this big science poster is showing:

1. The Blurry, Glowing Pictures

Imagine you put a super-fast, glowing firefly inside a jar in a dark room and took a blurry photo of it zooming around. That firefly is an electron (a tiny, invisible piece of an atom). The bright, glowing spots in those black squares are like a map showing where the electron spends the most time buzzing around.