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[deleted] t1_je1gmuo wrote

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SpoilsOfTour t1_je23vse wrote

When I was a kid I had a physics teacher who tried to get us excited with this theory. His argument was that the moon is

  1. Perfectly spherical

  2. Locked with one side that always faces Earth

  3. Placed at such a distance that it appears exactly the same size as our sun in the sky.

I doubt that he truly believed it, I think he just wanted to make the subject more interesting for kids, but I've always been fascinated by astronomy, and the idea that things aren't what they seem is always cool.

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Kantrh t1_je2w6r5 wrote

The moon isn't perfectly spherical

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Eye-tactics t1_je357jb wrote

The moon is a fragment of an ancient planet named Theia. It collided with earth and the molten remnants formed into a sphere by gravity. I'm pretty sure there isn't anything weird about the moon being circular like that. There are literally remnants of the planet sticking out of our crust and core of the planet recently mapped.

https://skyandtelescope.org/astronomy-news/bits-of-theia-might-be-in-earths-mantle/ The animation in this article show what I'm talking about.

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