In the third century B.C.E., a Greek named Aristarchus of Samos put forth the hypothesis that the sun is at the center of the cosmos, but his ideas were dismissed in favor of Aristotle’s.
Katika karne ya tatu K.W.K., Mgiriki mmoja anayeitwa Aristarko wa Samos alitoa dhana ya kwamba jua liko katikati ya ulimwengu wote, lakini mawazo yake yalikataliwa na yale ya Aristotle.