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    What is the cosmic microwave background? | Space

    • The cosmic microwave background (CMB) is the leftover radiation from the Big Bang that fills the universe. Learn how it was discovered, what it reveals about the early universe and how it is studied by spac… See more

    How Did The Cosmic Microwave Background form?

    The universe began 13.8 billion years ago, and the CMB dates back to about 400,000 years after the Big Bang. That's because in the early stages of the universe when it was just one-hu… See more

    Space.com
    Who Discovered The Cosmic Microwave background?

    American cosmologist Ralph Apher first predicted the CMB in 1948, when he was doing work with Robert Herman and George Gamow, according to NASA. The team was d… See more

    Space.com
    What Does The Cosmic Microwave Background Tell Us?

    The CMB is useful to scientists because it helps us learn how the early universe was formed. It is at a uniform temperature with only small fluctuations visible with precise telescopes… See more

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    Additional Reading

    If you would like to learn more about the cosmic microwave background and the Big Bang, check out this free course with the Open University. You can explore the strange "co… See more

    Space.com
    What is the role of cosmic microwave background radiation in cosmology?
    The role of Cosmic Microwave Background (CMB) radiation in modern cosmology is of paramount importance. It serves as a crucial tool for understanding the fundamental principles that govern the universe, including the Big Bang theory, the universe’s formation, and the development of current cosmological models.
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