
Composite image of Pluto, courtesy Eliot Young (SwRI) et al., NASA
For three years, Pluto–the ninth planet–has been given the cold shoulder by the astronomy community, which demoted it to dwarf planet in 2006.
What is it about Pluto that tugs at our heartstrings?
MSNBC.com Science Editor Alan Boyle explores our fascination with Pluto in his new book, The Case for Pluto.
Podcast: Play in new window | Download