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    Universe expansion

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    Why is the universe believed to be expanding?

    Please provide references as well.

    © BrainMass Inc. brainmass.com June 3, 2020, 5:51 pm ad1c9bdddf
    https://brainmass.com/physics/expanding-universe/universe-expansion-40206

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    The universe is beleived to be expanding on the facts that the ...

    $2.19

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