La rivoluzione scientifica di un francescano: Ilario Altobelli tra astronomia e astrologia

Although early-modern Franciscans are predominantly known as preachers, theologians, and religious authors, several of them also had scientific interests as well. One of the more intriguing among them was Ilario Altobelli (1560–1637), a friend of Galileo Galilei (1564–1642), mentioned by Johannes Kepler (1571–1630) and other famous modern astronomers. In his works, Altobelli reveals to know the most important astronomical questions of his time but he seems to maintain a scientific and open mind when he indirectly comparing different world systems, without deciding for a definitive choose because of the absence of true demonstrations.