User:Spookykylie/sandbox

https://astro.unl.edu/naap/ssm/heliocentric.html

https://www.jstor.org/stable/283344?seq=1

https://www.jstor.org/stable/986462?seq=1

https://www.jstor.org/stable/j.ctt1g69xrh.28?seq=1#metadata_info_tab_contents

https://phys.org/news/2016-01-heliocentric-universe.html

https://plato.stanford.edu/entries/copernicus/