Do you know much about your own planet? You know it’s round and blue, sure, and that it’s the third planet from the sun. But there’s a lot going on here — and not just where humans are concerned.

In honor of Earth Day, let’s take a look at our planet in all its weird, wonderful, life-sustaining glory!

1. Earth is pretty big compared to us, but pretty small in the grand scheme of things.

At the Equator, Earth has a circumference of 24,901 miles, or 40,075 kilometers.