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Several days ago, I posted these two pictures with a vaguely worded question:  https://themadspaceball.wordpress.com/2013/08/09/one-of-these-things/ I promised an answer to that question and here it is:  the top picture was taken from low earth orbit (LEO), the bottom from geosynchronous (GEO) orbit. How can one tell from just the pictures?  Two big telltales exist in them. […]

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