Summary: Up-to-date night sky activity beginning October 25, 2011 through October 7, 2011. In this episode: We're talking to Bill Hartmann about the geography Mars and what the features and composition tells us about our red neighbor.
Summary: Up-to-date night sky activity beginning October 25, 2011 through October 7, 2011. In this episode: We're talking to Bill Hartmann about the geography Mars and what the features and composition tells us about our red neighbor.