1. The time taken by sunlight to reach the earth is 8 minutes 20 seconds.
2. The time required for moonlight to reach earth 1.3 seconds.
3. The moon’s volume is about 1/50th of Earth.
4. The exact time taken by the earth for single rotation on its own axis is 23 hours 56 minutes 4.09 seconds.
5. The size of the earth was first measured by Eratosthenes.

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