Planetary Radio • Aug 22, 2005
A Tour of the Solar System With Bill Hartmann
The world renown artist, author and planetary scientist talks about the beautiful, just-published third edition of The Grand Tour--A Traveler's Guide to the Solar System. Emily Lakdawalla is spinning her Martian wheels in this week's Q&A segment. And Bruce Betts has an amphibian in his throat and planets in the sky on What's Up."