2010 "First Edition" stated on copyright page; signed by Mike Brown on title page (pic); Spiegel & Grau publishers; hardbound; very good condition of book and dust jacket.
 
description -
How I Killed Pluto and Why It Had It Coming is the 2010 memoir by Mike Brown, the American astronomer most responsible for the reclassification of Pluto from planet to dwarf planet.
 
The memoir is an account of the events surrounding the redefinition of the term planet that eventually changed the status of Pluto. It chronicles the discovery of Eris, a dwarf planet then mistakenly thought to be larger than Pluto, located within the scattered disc, beyond Neptune's orbit. The replaying of events includes the adversarial challenging of long-held scientific beliefs between some of the world's leading astronomers and the eventual 2006 International Astronomical Union's vote that removed Pluto from the list of Solar System planets.[