Why does the Moon look so much bigger on the horizon than...

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Question: Why does the Moon look so much bigger on the horizon than it does once it has risen higher in the sky?

Answer: When the Moon is on the horizon, you have other objects, such as houses and trees, to compare it to, so it looks larger. Once the Moon is in the sky, the only things to compare it to are the stars, which appear as tiny points of light. Hence the Moon looks smaller once it has risen.