Download or read book Focus on Middle School Astronomy Student Textbook 3rd Edition written by Rebecca W. Keller and published by Focus on. This book was released on 2019-02-27 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to astronomy: history of astronomy; telescopes and spacecraft; the Moon; the Sun, solar energy, the chemistry and physics of stars; measuring time; star atlases; life cycle of stars; planets; Milky Way Galaxy; other galaxies; novae and supernovae; other objects in space; and more. 12 full color chapters. 148 pages. Grades 5-8.