Talk:Frame of reference

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Physics: Relativity Start‑class Mid‑importance

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I had a question as to whether there is a grand frame of reference or not. Because right now I'm sitting in a chair, on the earth, going around the sun, while at the same time, the solar system is revolving around the Milky Way. What's beyond that? Is there no frame of reference beyond the galaxy? I would think not because all of the galaxies are moving away from each other.