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"Models" aren't wrong; they are "more useful" or "less useful" for the intended purposes. The geocentric model is quite useful, for the purpose of celestial navigation, for example. It makes the math easier.

But the geocentric model doesn't really describe what's going on in the solar system, where the Earth and other planets orbit the Sun.

Of course, the "heliocentric", or "sun-centered" model is only useful for describing things within our solar system; it doesn't model other stars or the rest of the galaxy or universe accurately.

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12y ago

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