Planetary Radio • Aug 22, 2005

A Tour of the Solar System With Bill Hartmann

On This Episode

William Hartmann

Planetary scientist, author, and artist

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."