Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
10.1
Points
3.0
Fiction/Nonfiction
Nonfiction
Word Count
16172
Points per Word
0.000186
Page Count
111
Points per Page
0.027027
Description
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.