clearly visible as the Moon's activity is to the Earth's inhabitants. Nearly 20 years later, Kepler added the dream framework, and after another decade, he drafted a series of explanatory notes reflecting upon his turbulent career and the stages of his intellectual development. The book was edited by Ludwig Kepler and Jacob Bartsch, after Kepler's death in 1630. Publication There are many similarities to Kepler's real life in Somnium. Duracotus spends a considerable amount of time working for Tycho Brahe. Kepler worked under Tycho Brahe in 1600 before becoming Imperial Mathematician. Kepler's mother, Katharina Kepler, would be arrested on charges of being a witch. Kepler fought for five years to free her. After her death, Kepler wrote extensive notes to explain his narrative. The book was published posthumously in 1634 by his son, Ludwig Kepler. Science Levania Kepler uses a daemon to describe the island of Levania in many scientific ways. The fixed stars are in the same position as the Earth's fixed stars. The planets appear larger from Levania than from Earth due to the distance Levania is from Earth. Levania also sees planetary motions in a different way. For instance, Levania does not seem to move but the Earth seems to orbit around it just as the Moon seems to orbit the Earth whiles on the planet (Earth). This is an example of Kepler defending Copernicus' diurnal rotation. The inhabitants at the divisor see the planets different from the rest of the Moon. Mercury and Venus specifically seem bigger to them. Privolva A day is around 14 Earth days sometimes less. Night on Privolva is 15 or 16 Earth days. During the nights, Privolva experiences intense cold and strong winds. During the day, Privolva experiences extreme heat with no wind. During the night, water is pumped to Subvolva. During the Privolvan day, some of the water is pumped back to Privolva to protect its inhabitants from the intense heat. The inhabitants are described as giants that hide under water to escape from the heat of the day. Subvolva A day and night is around 30 Earth days. A day on Subvolva represents the Phases of the Moon on Earth. Subvolva sees the Earth as its moon. The Earth goes through phases just as the Moon does during their night. Kepler notes that Subvolva is inhabited by serpent-like creatures. The Subvolvan terrain is full of fields and towns, just