"A biography of Carl Sagan focusing on his childhood and culminating in the Voyager mission and the Golden Record"--Provided by publisher. Interest Level: K-3 Reading Level: 2.9 ATOS Book Level: 3.6 AR Interest Level: LG AR Points: .5 AR Quiz: 174608EN Reading Counts Level: 3.6 Reading Counts Points: 1 Lexile Measure: 760 Lexile Code: AD (Adult Directed) Fountas & Pinnell: O.