Guest: Dr. Tony Milligan. Topics: Dr. Milligan's new book, "Nobody Owns the Moon: The Ethics of Space Exploitation" plus commercial space development ethical issues. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use.