3 ms·https://en.m.wikipedia.org/wiki/Aristarchus_of_Samos https://en.m.wikipedia.org/wiki/Aristarchus_of_Samosby sdenton4 5y agohttps://en.m.wikipedia.org/wiki/Aristarchus_of_Samos https://en.m.wikipedia.org/wiki/Aristarchus_of_Samos