Universet: Forskelle mellem versioner

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[[Fil:CMB Timeline300 no WMAP.jpg|thumb|En tidslinie for universets udvidelse, der baseres på antagelserne [[Big bang]] og at universet udvider sig evigt.]]
'''Universet''' defineres almindeligvis som alt eksisterende,<ref>{{cite book|url=http://www.yourdictionary.com/Universe|title=Universe|work=Webster's New World College Dictionary, Wiley Publishing, Inc.|year=2010}}
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{{Cite web |url=http://www.britannica.com/search?query=Universe |work=Encyclopedia Britannica |title=Universe |quote=the whole cosmic system of matter and energy of which Earth, and therefore the human race, is a part }}
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{{cite web|url=http://dictionary.reference.com/browse/Universe?s=t|title=Universe|work=Dictionary.com|accessdate=2012-09-21}}<!-- this source even includes supposed things, not JUST known things-->