More than half of Earth's available free water is in the Pacific Ocean because its basin is just that damn deep. Did you know that? Well now you do.
This video ranks the top three coolest, most mind-blowing facts about Earth that you should have learned by fifth grade, but probably didn't.
It's the kind of knowledge that might win you an extra round at pub trivia, clinch your Jeopardy millions, or maybe just come in handy next time you bump into Richard Attenborough at the cafe.
Watch this video for a refresher on more astounding facts about Earth, the pale blue dot we all call home.