A fundamental difference between Newton's cosmology and those preceding it was the Copernican principle—that the bodies on earth obey the same physical laws as all the celestial bodies.
Základným rozdielom medzi Newtonovskou kozmológiou a jej predchodcami bol Kopernikov princíp, tzn. že pre telesá na zemi platia rovnaké zákony ako pre nebeské telesá.