Question

Galaxies and other large structures form in the universe about ______ after the Big Bang.

a. 3.7 billion years old
b. 10^-35 (incorrect)
c. 380,000 years
d. 500 million years

Answer 1

Galaxies and other large structures form in the universe about 500 million years after the Big Bang.

Step-by-step explanation:

The galaxies and other large structures in the universe form about 500 million years after the Big Bang. According to astronomers, the universe is approximately 13.8 billion years old, and based on observations, some of the globular-cluster stars in the Milky Way must have formed less than a billion years after the expansion began.