Editing Copernican principle (section)

{{Short description|Principle that humans are not privileged observers of the universe}}
{{cosmology}}
{{unsolved|physics|Are cosmological observations made from Earth representative of observations from the average position in the universe?}}
[[File:Kepler-Bruno.jpg|thumb|upright=1.2|Figure 'M' (for Latin ''Mundus'') from [[Johannes Kepler]]'s 1617–1621 ''[[Epitome Astronomiae Copernicanae]]'', showing the [[Earth]] as belonging to just one of any number of similar stars]]
In [[physical cosmology]], the '''Copernican principle''' states that humans are not privileged observers of the [[universe]],<ref>{{cite book |last=Peacock |first=John A. |title=Cosmological Physics |url=https://archive.org/details/cosmologicalphys0000peac |url-access=registration |publisher=[[Cambridge University Press]] |page=[https://archive.org/details/cosmologicalphys0000peac/page/66 66] |year=1998 |isbn=978-0-521-42270-3}}</ref> that observations from the Earth are representative of observations from the average position in the universe. Named for [[Copernican heliocentrism]], it is a working assumption that arises from a modified cosmological extension of [[Nicolaus Copernicus|Copernicus']] argument of a moving Earth.<ref>{{cite book |last=Bondi |first=Hermann |author-link=Hermann Bondi |title=Cosmology |publisher=Cambridge University Press |year=1952 |page=13}}</ref>