AR Book Level
10.1
AR Points
3
Word Count
16,172
Interest Level
Middle Grades (MG 4-8)
Genre
Nonfiction
AR Quiz #
11092 EN
About this book
Traces the history of deep space astronomy, from the early theories and discoveries of Copernicus, Kepler, and Galileo to recent research into quasars and extraterrestrial life.
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