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The accidental discovery of the CMB in 1965 by American radio astronomers Arno Penzias and Robert Wilson was the culmination of work initiated in the 1940s, and earned the discoverers the 1978 Nobel Prize in Physics
What did Arno Penzias and Robert Wilson discover?
However, when Arno Penzias and Robert Wilson studied cosmic radiation in 1964, they discovered that microwaves with a wavelength of about 7 centimeters were stronger than expected.
How was the discovery of CMB evidence for Big Bang?
Their detection of the Cosmic Microwave Background (CMB), the radiation left over from the birth of the universe, provided the strongest possible evidence that the universe expanded from an initial violent explosion, known as The Big Bang.
What did COBE discover?
COBE revolutionized our understanding of the early cosmos. It precisely measured and mapped the oldest light in the universe -- the cosmic microwave background. The cosmic microwave background spectrum was measured with a precision of 0.005%. The results confirmed the Big Bang theory of the origin of the universe.
Learn more about cosmic microwave background radiation:
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