I received a post that said: Did you know the earth is about 6,588,000,000,000,000,000 tons in weight? and when I Googled it, sure enough http://science.howstuffworks.com/planet-earth-weigh.htm says its mass is 6,000,000,000,000,000,000,000,000 (6E+24). Ah isn’t the internet grand? You can get divergent opinions on anything!