Printer Friendly
The Free Dictionary
990,107,832 visitors served.
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

cosmic background radiation
(redirected from cosmic microwave background radiation)

    Also found in: Dictionary/thesaurus, Acronyms, Wikipedia, Hutchinson 0.03 sec.

cosmic background radiation

Electromagnetic radiation, mostly in the microwave range, believed to be the highly redshifted residual effect (see redshift) of the explosion billions of years ago from which, according to the big-bang model, the universe was created. It was discovered by accident in 1964 by Robert W. Wilson and Arno Penzias; its presence supports the predictions of big-bang cosmology.
?Page tools
Printer friendly
Cite / link
 Email
Feedback
? Mentioned in ? References in periodicals archive
 
This chart includes all known ranges of EMR including: gamma rays, X-rays, ultraviolet light, visible light, infrared, microwaves, radio waves (ULF, VLF, LF, MF, HF, long, short, HAM, VHF, UHF, SHF, EHF), cosmic microwave background radiation and brain waves, all organized by octaves.
The electromagnetic radiation spectrum chart by Science News
It wasn't until the mid-1960s that scientists using radio astronomy discovered cosmic microwave background radiation and pushed the Big Bang theory into prominence.
Big Bang: the Origin of the Universe by Science News
Before that, the universe was so hot that there were no neutral atoms, only ions and electrons that trapped the cosmic microwave background radiation.
Satellite homes in on the infant universe. (Cosmic Revelations) by Cowen, R. / Science News
More results
 
Encyclopedia browser? ? Full browser
 
 
Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2008 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.