Descartes Universe

https://plato.stanford.edu/entries/descartes-physics/

The discovery of Milkly way

(1) Galileo discovered many starts in the Milky way, around 1610.

http://mo-www.harvard.edu/microobs/guestobserverportal/Galileo/ThenNow/Orion/mObsOrionWeb.htm

https://goo.gl/rQmqnX