Logo
dictionary thesaurus

cosmic background radiation

noun

Definition of cosmic background radiation

: background radiation

Examples of cosmic background radiation in a Sentence

Recent Examples on the Web

 The second method uses cosmic background radiation, which is the afterglow of the Big Bang and the oldest visible light astronomers can observe. — Ashley Strickland, CNN, "Red giant stars create new way to measure how quickly the universe is expanding," 16 July 2019

First Known Use of cosmic background radiation

circa 1976, in the meaning defined above

Keep scrolling for more

WORD OF THE DAY

cantankerous

play

See Definitions and Examples

Get Word of the Day daily email!