When is a planet not a planet? : the story of Pluto
题名:
When is a planet not a planet? : the story of Pluto
PERSONAL_AUTHOR_EPSB:
摘要:
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.
出版日期范围:
2007
物理描述:
43 p. : ill. (some col.) ; 26 cm.
内容:
Introduction --The wanderers -- Some early astronomers -- Ideas that work--and those that don't -- Pluto's problems -- Finding planets -- What is a planet?
本地注释:
This book donated to our library on behalf of Howie Long our dedicated D.A.R.E. Officer, 2010-2011.
程序信息:
Accelerated Reader LG 6.6 1.0 116718
Sky Science Gr. 6+
Science - Grade 9
Science
主题词汇:
地理术语:
ISBN:
9780618898329
出版信息:
New York : Clarion Books, c2007.
