microwave background
Britishnoun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The other looks much farther back in time, using the cosmic microwave background to estimate what the expansion rate should be today based on the standard model of cosmology.
From Science Daily • Apr. 12, 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
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
In recent years, the foundation has funded a new observatory in Chile’s Atacama Desert to observe microwave background radiation from the big bang, and created the Flatiron Institute, which applies computational methods to scientific research.
From Science Magazine • May 15, 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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