What is the rate of cosmic stretching quantified by, and in what units?
Answer
The Hubble Constant ($H_0$), measured in kilometers per second per megaparsec ($ ext{km/s}/ ext{Mpc}$).
The rate of expansion is quantified by the Hubble Constant ($H_0$), and its standard unit of measurement is kilometers per second per megaparsec ($ ext{km/s}/ ext{Mpc}$). A higher value indicates faster expansion.
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