Water, water, everywhere, right? We're all taught that something like 70% of the surface of the Earth is covered in water. And when you take a look at an image of our "blue planet" from space, it does look more "blue" than anything else. But this stunning image puts a whole new perspective on it. Or, at least, it did for me.
|Earth, with all it's water locked up in a bunch of huge marbles. Illustration by Jack Cook of Woods Hole Oceanographic Institute, from the USGS website.|