Introduction --The wanderers -- Some early astronomers -- Ideas that work--and those that don't -- Pluto's problems -- Finding planets -- What is a planet?
Indexed In:
Bklst 09/01/2007
SLJ Oct 2007
Kirkus 08/15/2007
BCCB Recommended
Horn Bk Nov 2007
Summary
Explains how advancements in technology have changed our understanding of the universe and why the number of planets in the solar system went down from nine to eight.
