Astronomy, Early European Astronomy, Geocentric Universe, Greek
Category: Astronomy
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Astronomy, 17th Century, Modern Era (16th Century-Present)
Astronomy, Modern Era: 17th Century, Distances to the Stars
Astronomy, Johannes Kepler (1571-1630), Renaissance (14th-15th Century)
Astronomy, Renaissance: Johannes Kepler (1571-1630)
Astronomy, Medieval Period (5th-13th Century)