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What does universal expansion mean?

Updated: 4/28/2022
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13y ago

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Hubbles Law shows that the radial velocity of a galaxy is proportional to its distance. this can be explained by the " raisin bread model", which states that a person standing on a certain raisin as the bread expands with baking ,will observe that the raisins closest to them seem to recede, and the farther the raisins are from them the faster they seem to recede, yet in reality the bread and raisins recede or move away from them at a constant rate but to the observer it seems that they move at different rates of speed. Which means that where ever you are in the solar system all of the bodies in the universe are moving away from you at a constant rate of speed.

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13y ago
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Q: What does universal expansion mean?
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