Learn about the moon in this fun video!

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When the moon passes through the Earth's shadow, it causes the moon to look very unusual for a short period of time. This event is called a lunar eclipse, and it occurs roughly twice a year.

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This stargazing device helps orient you in order to identify over 6,000 celestial objects in the sky.

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Tapes of mankind's first lunar landing misplaced?

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With leap years every 4 years, our days drift from the time counted out by the Sun, but only measured over centuries. So leap years are lessened to non-centuries divisible by 4 and centuries divisible by 400.

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