Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Although not all of Europe is shown, city lights might make this task possible. The above picture is actually a composite of over 200 images made by satellites orbiting the Earth . Operational Linescan System. The DMSP satellites continue to help in the understanding and prediction of weather phenomena as well as provide key information about population patterns , city light levels , and even rural forest fires .
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