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Galileo's Hidden Notes Uncover Early Thoughts on Geocentrism

3/6/2026

Summary

Story summary

Ivan Malara, an Italian historian, found Galileo Galilei's notes in a 1551 edition of Ptolemy's Almagest at Florence's National Central Library.
The notes were written around 1590.
The notes reveal Galilei's early engagement with geocentrism before he championed heliocentrism.
The notes include critiques of Ptolemy's theories.
Malara plans to publish a detailed analysis in the Journal for the History of Astronomy, which could deepen understanding of the origins of modern science.

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Story summary

Ivan Malara, an Italian historian, found Galileo Galilei's notes in a 1551 edition of Ptolemy's Almagest at Florence's National Central Library.
The notes were written around 1590.
The notes reveal Galilei's early engagement with geocentrism before he championed heliocentrism.
The notes include critiques of Ptolemy's theories.
Malara plans to publish a detailed analysis in the Journal for the History of Astronomy, which could deepen understanding of the origins of modern science.