Question Red Shift

Apr 30, 2021
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Dr. Pesce,
How do we know the Red Shift that we view isn't caused by some unknown physical property of the universe that we cannot see or detect? I feel that the ancient textbook answer of the Doppler effect was too easy, especially considering how much Dark Matter mass we are not taking into account very well, and the unknown quantum effects at great distance. Who are the astrophysicists that are writing about another reason for the Red Shift? Thank you.
Best, Doug Czor
 
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Wolfshadw

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Apr 1, 2020
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Please post any further questions to Dr Pesce in the AMA thread. I have copied and pasted your question there.

Wolfshadw
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