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Whose discovery showed that the universe is filled with the afterglow of the Big Bang?
Quick Answer
Arno Penzias and Robert Wilson discovered the cosmic microwave background in 1965. It was one of the strongest pieces of evidence for the Big Bang.
The Full Story
Arno Penzias and Robert Wilson detected a faint microwave signal coming from every direction in the sky while working at Bell Labs in 1965. The radiation turned out to be the cosmic microwave background, the cooled remnant of the early hot universe. Their discovery strongly supported the Big Bang model and later earned them the 1978 Nobel Prize in Physics. The CMB is now measured in great detail by space missions such as COBE, WMAP, and Planck.
Key Facts
1.Discovered in 1965
2.Earned the 1978 Nobel Prize in Physics
3.CMB temperature is about 2.7 K
YouTube Angle
Suggested video title for this topic:
"The accidental discovery that proved the Big Bang was real"
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