Compared to Jupiter’s moon Europa, our planet is practically a desert, as this NASA image shows. It’s a computer visualization showing Europa and a dried-out Earth, with the volume of all their water represented by blue spheres.
(Details at APOD: 2012 May 24 - All the Water on Europa)
All Of Earth’s Water In A Single Sphere
This picture shows the size of a sphere that would contain all of Earth’s water in comparison to the size of the Earth. The diameter would be roughly the distance from Salt Lake City, Utah to Topeka, Kansas.
The sphere includes all the water in the oceans, seas, ice caps, lakes and rivers as well as groundwater, atmospheric water, and even the water in you, your dog, and your tomato plant.
The Richat Structure in Mauritania.
From “33 Stunning Photos Of Our Amazing Planet Earth Taken By A Guy In Space.”
Brought to you by science.
The geological clock: a projection of Earth’s 4,5 Ga history on a clock (“MA” = a million years (Megayear) ago; “GA” = a billion years (Gigayear) ago)
I’m just fascinated by what a tiny portion of the total time is covered by dinosaurs and other things we find familiar. We (humans) are pretty much microscopic.
Earth has hit its natural resource ceiling for the year
Today marks ‘Earth Overshoot Day’, says the Global Footprint Network. Humans have officially used more natural resources in a year than the Earth can replenish.






