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200
ptolemy
he thought the sun,stars, planets revolve around the earth. -
Jan 1, 1473
nicholas copernicus
he came up with the helocentric theory -
Jan 1, 1564
galileo galilei
improved the telescope venus has phases like the moon . he also dicoved the milky way. -
Jan 1, 1571
johannes kepler
the orbit of a planet about the sun is an eclipse with suns center mass at one focus. using a model he made -
sir isaac newton
he belived in gravity because he tested 2 different objects dropped will hit the ground at the same time.
