earth dayHappy Earth Day, tree huggers! Monday, April 22 marks the 43rd annual Earth Day celebrations, and billions of people around the world are encouraged to take a moment out of their busy day to appreciate this beautiful, generous planet that we call home.

But just how well do you know your mother Earth? After you're done reducing, reusing, and recycling today, take a gander at these 9 fascinating facts about our planet. She's worth saving, you guys. Heard it here first.


Photo via rkrammer62/Flickr