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What happens when the Earth comes directly between the Sun and the Moon, causing Earth's shadow to be cast upon the Moon?

Answer 1

A lunar eclipse is occuring.

A lunar eclipse occurs when the Earth passes between the sun and the moon, causing the moon to go dark or in some cases, reddish in color

Here is a time lapse series of pics showing the fall 2015 lunar eclipse.

Ancient people's used to think that lunar eclipses were a bad omen or other crazy ideas. We now know that they are not really that special or mean anything in particular.

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Answer 2

Mila Bautista

When the Earth comes directly between the Sun and the Moon, causing Earth's shadow to be cast upon the Moon, it results in a lunar eclipse.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.