Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.3
Points
2.0
Fiction/Nonfiction
Nonfiction
Word Count
10391
Points per Word
0.000192
Page Count
64
Points per Page
0.03125
Series
Explore the Universe
Description
Explore the exciting history of orbiting telescopes and learn how their breathtaking views of deep space have revolutionized astronomy.