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DescriptionEarth and Moon speed of light by James O'Donoghue.gif
English: Original description: This is the distance between the Earth and Moon with the correct sizes and scales. The real-time speed of light is also shown.
Animation by Dr. James O'Donoghue using NASA imagery.
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https://creativecommons.org/licenses/by/3.0CC BY 3.0 Creative Commons Attribution 3.0 truetrue
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