The age of the universe is estimated by the:
A) temperature of the universal background radiation.
B) age of comets formed in interstellar space.
C) rate at which galaxies are moving away from one another.
D) age of subatomic particles as determined by radioactive decay.

Question

Quizplus · Accepted Answer

The age of the universe is estimated by measuring the rate at which galaxies are moving away from each other, which is related to the expansion rate of the universe, known as the Hubble constant.

The Age of the Universe Is Estimated by The