Extragalactic background light
From Wikipedia, the free encyclopedia
The Extragalactic Background Light (EBL) is the faint diffuse light of the night sky, consisting of the combined flux of all extragalactic sources. Its main significance for astronomers is that it contains information regarding the history and formation of other galaxies, and also the large-scale structure of the universe.
[edit] See also
Cosmic Microwave Background (CMB) radiation
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