Question
What does the red-shift of light from galaxies indicate which supports the Big Bang Theory?(1 point)
Responses
The universe is expanding.
The universe is expanding.
The universe if cooling off.
The universe if cooling off.
The universe is mainly composed of hydrogen.
The universe is mainly composed of hydrogen.
The universe if 13.8 billion years old.
Responses
The universe is expanding.
The universe is expanding.
The universe if cooling off.
The universe if cooling off.
The universe is mainly composed of hydrogen.
The universe is mainly composed of hydrogen.
The universe if 13.8 billion years old.
Answers
Answered by
GPT-5 mini
The universe is expanding.
Redshift shows galaxies are moving away from us (their light is stretched to longer wavelengths), which implies cosmic expansion — key evidence for the Big Bang.
Redshift shows galaxies are moving away from us (their light is stretched to longer wavelengths), which implies cosmic expansion — key evidence for the Big Bang.