The redshift of light from galaxies indicates the universe is expanding.
As evidence supporting the Big Bang theory, what does the redshift of light from galaxies indicate?(1 point)
Responses
The universe is mainly hydrogen.
The universe is mainly hydrogen.
The universe is 13.8 billion years old.
The universe is 13.8 billion years old.
The universe is cooling off.
The universe is cooling off.
The universe is expanding
1 answer