what was discovered in 1965 and is believed to be leftover thermal energy from the big bang? red shift the…

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

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

Answer

Brief Explanations:

In 1965, Arno Penzias and Robert Wilson discovered cosmic - microwave background radiation, which is thought to be leftover thermal energy from the Big Bang. Red - shift is related to the expansion of the universe and the Doppler effect is about the change in frequency of waves due to relative motion. The Eagle Nebula is a star - forming region.

Answer:

D. background radiation