microwave background
Britishnoun
Example Sentences
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The cosmic microwave background — the afterglow of the Big Bang — shows a small but persistent asymmetry: a preference for one spatial orientation over its mirror image.
From Science Daily • May 22, 2026
Arno Penzias at Bell Labs won the Nobel Prize in Physics for discovering “cosmic microwave background radiation” from the Big Bang.
From The Wall Street Journal • Mar. 29, 2026
However, interest in evolving dark energy was vigorously rekindled last year from the combination of supernovae, baryon acoustic oscillation, and cosmic microwave background data from the DES, DESI, and Planck experiments.
From Science Daily • Nov. 4, 2025
The second method, called the early relic method, involves measuring the leftover light from the Big Bang in what is called the cosmic microwave background.
From Salon • Dec. 9, 2024
Observations of the microwave background and of the abundances of the light elements indicate that the early universe did not have the kind of curvature required to allow time travel.
From "A Brief History of Time: And Other Essays" by Stephen Hawking
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