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Shown in the image are representations of all the Earth’s water and all of the air in Earth’s atmosphere collected into spheres and placed next to the mass of the planet for comparison. The site where I found this image also includes sources of information for finding the mass of all of the water and air, and some complicated math which claims to prove the accuracy of the claim. Whether or not the math actually proves anything, I think the picture is pretty interesting. There is also a post at boing boing about this image, which means a lot of users are sharing their comments about it.












