Reading Metrics
Grade Level
Upper Grades (UG 9-12)
Book Level
11.2
Points
5.0
Fiction/Nonfiction
Nonfiction
Word Count
23255
Points per Word
0.000215
Page Count
112
Points per Page
0.044643
Description
This book describes the invention of the telescope and its history, covering such topics as radio telescopes, orbiting telescopes, x-rays and gamma rays, and the Hubble Space Telescope.