
On August 24, 2006, a group of astronomers made a big announcement: Pluto could no longer be considered a planet. This book explains how advancements in technology have changed our understanding of the universe--and exactly how and why the number of planets in our solar system went from nine to eight.
Page Count:
43
Publication Date:
2007-01-01
ISBN-13:
9780618898329
No comments yet. Be the first to share your thoughts!