Download or read book The Third Planet written by Sally Ride and published by Imaginary Lines, Inc.. This book was released on 2004 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Astronaut Sally Ride examines how the earth is studied from space, its critical relationship with the other planets in the solar system, and some of the earth's features, including climate, orbits, atmosphere, and light.