Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.6
Points
2.0
Fiction/Nonfiction
Nonfiction
Word Count
13595
Points per Word
0.000147
Page Count
128
Points per Page
0.015625
Description
Traces the life and the work of the man whose study of galaxies led to a new understanding of the universe.