New guest podcast up from Mark.
Podcast Notes: http://treksinscifi.com/podcast_notes/?p=4646 (http://treksinscifi.com/podcast_notes/?p=4646)
http://www.treksinscifi.com/podcasts/TreksinSciFi_831_Not_Earth.mp3 (http://www.treksinscifi.com/podcasts/TreksinSciFi_831_Not_Earth.mp3)