Biology, 19.11.2019 10:31 ocean11618

In the history of astronomy, which of the following is true?
johannes kepler was a student of tycho brahe.
galileo galilei built one of the first observatories.
ptolemy argued that the sun was the center of the universe.
isaac newton was criticized for his work on the geocentric model.

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In the history of astronomy, which of the following is true?
johannes kepler was a student of...