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Astronomers can estimate the age of the universe by picking a blank at some Blank from the Blank .
Astronomers can estimate the age of the universe by picking a blank
at some Blank
from the Blank
. Since the distance to the galaxy is known and we can measure it's Answer
we can estimate the Answer
they started moving apart. When astronomers apply this type of calculation to galaxies throughout the universe they see that the universe is approximately Blank
years old.
Note: Please copy in your answers from the Word Bank below.
Word Bank1965
14 billion
Big Bang
closer together
Cosmic Microwave Background Explorer
distanceexpanding universe
finite time
galaxy
Georges Lemaitre
Hubble's Law
Milky Way
moves awayPrimeval Atom
radiation
redshift
superdense state
surface
time
velocity
