Alien Invasion: How to Defend Earth
Dr.  Bob Boan has been an active member of the space community for over a  quarter of a century, with expertise in remote sensing and communication  systems and concepts using both radio frequency and optical  technologies. He has been involved in developing systems for civil,  commercial and military applications. Dr. Boan has written poignant,  critically acclaimed literary fiction such as Bobby becomes Bob,  Twilight Times Books.