Daily Almanac for
Nov 27, 2009
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cos'mic back'ground radia"tion



Astron.
electromagnetic radiation coming from every direction in the universe, considered the remnant of the big bang and corresponding to the black-body radiation of 3 K, the temperature to which the universe has cooled. Also called cos'mic mi'crowave back"ground.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

cosmiccosmic dust
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