Question

Which is one piece of information that astronomers use to calculate the age of the universe?

Answer 1

Answer:

Here is your answer

Explanation:

Astronomers estimate the age of the universe in two ways: 1) by looking for the oldest stars; and 2) by measuring the rate of expansion of the universe and extrapolating back to the Big Bang; just as crime detectives can trace the origin of a bullet from the holes in a wall