Galileo Galilei
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Galileo di Vincenzo Bonaiuti de' Galilei, commonly referred to as Galileo Galilei, was an Italian astronomer, physicist, engineer and polymath. He was born in Pisa, then part of the Duchy of Florence.
Portrait c. 1640
Portrait believed to be of Galileo's elder daughter Virginia, who was particularly devoted to her father
"Cannocchiali" telescopes at the Museo Galileo, Florence, suspected to be Galilean telescopes (top: 1610–1630; bottom: 1609–1640)
An illustration of the Moon from Sidereus Nuncius, published in Venice, 1610
Johannes Kepler
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Johannes Kepler was a German polymath who was an astronomer, mathematician, astrologer, natural philosopher and music theorist. He is a key figure in the 17th-century Scientific Revolution, best known
Portrait, c. 1910, after 1620 original
Kepler's birthplace, in Weil der Stadt, Germany
Oil on copper portraits of Kepler and his wife, c. 1600
House of Kepler and Barbara Müller in Gössendorf, near Graz (1597–1599)