Editing Cosmic microwave background (section)

==Future evolution==
Assuming the universe keeps expanding and it does not suffer a [[Big Crunch]], a [[Big Rip]], or another similar fate, the cosmic microwave background will continue redshifting until it will no longer be detectable,<ref name="endcosmology">
{{cite journal
 |bibcode=2007GReGr..39.1545K
 |doi=10.1007/s10714-007-0472-9
 |title=The return of a static universe and the end of cosmology
 |year=2007
 |last1=Krauss |first1=Lawrence M.
 |last2=Scherrer |first2=Robert J.
 |journal=General Relativity and Gravitation
 |volume=39 |issue=10 |pages=1545–1550
|arxiv = 0704.0221 |s2cid=123442313
 }}</ref> and will be superseded first by the one produced by [[starlight]], and perhaps, later by the background radiation fields of processes that may take place in the far future of the universe such as [[proton decay]], [[Hawking radiation|evaporation of black holes]], and [[positronium]] decay.<ref name="fate">
{{cite journal
 |bibcode=1997RvMP...69..337A
 |arxiv= astro-ph/9701131
 |doi= 10.1103/RevModPhys.69.337
 |title=A dying universe: The long-term fate and evolution of astrophysical objects
 |year=1997
 |last1=Adams |first1=Fred C.
 |last2=Laughlin |first2=Gregory
 |journal=[[Reviews of Modern Physics]]
 |volume=69 |issue=2 |pages=337–372
|s2cid= 12173790
 }}</ref>