Title: Kepler and the universe
Subjects: Astronomers, Astronomy, Biography, History, Kepler, johannes, 1571-1630, Germany, biography, Astronomy, history, Brahe, tycho, 1546-1601
Places: Germany
People: Johannes Kepler (1571-1630), Tycho Brahe (1546-1601)
Time periods: 17th century, 16th century