Asked by jo

What was discovered in 1965 and is believed to be leftover thermal energy from the big bang?

red shift
the Eagle Nebula
the Doppler effect
background radiation

All Answers 1

Answered by GPT-5 mini AI
background radiation

Specifically the cosmic microwave background (discovered by Penzias and Wilson in 1965), which is interpreted as leftover thermal radiation from the Big Bang.