Mind-Blowing Facts About Earth

Earth is not actually round. It's squished at the poles and bulges at the equator like

a slightly deflated ball. And while everyone credits forests for our oxygen,

most of it actually comes from tiny ocean organisms called phytoplankton that pump out over

half the air we breathe. Here's something wild: you're moving at 1,670 kilometers

per hour right now just sitting there, because that's how fast Earth spins at the equator.

Plus we're orbiting the Sun at 107,000 kilometers per hour. Even crazier, Earth has a hidden

ocean trapped deep inside the mantle within a mineral called ringwoodite. We've also mapped

Mars better than our own ocean floor because over 80 percent of it remains completely unexplored.