Physics, 05.02.2020 07:56, aweid3085

By looking closely at how stars and galaxies are moving away from other, what have astronomers been able to calculate

a. the age of the universe only

b. the rate at which the universe is expanding only

c. the age of the universe and the rate at which the universe is expanding

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By looking closely at how stars and galaxies are moving away from other, what have astronomers been...