Space science of the Greeks
Greek space science showed up in around 600 BC, where Greek researchers and scholars built up various cosmic thoughts.
Pythagoras, who lived in the 6th century BC, accepted that the earth was circular, and furthermore attempted to clarify the idea of the universe and its structure in general, in this manner building up an early universe framework.
In around 370 BC, Eudoxus of Kneedos planned a mechanical framework to clarify planetary developments.
Eudoxus called the planets, the sun, the moon and the stars circling the earth.