Louis D. Griedman books & textbook
The Planetary Report: Lightsail - A New Way and a New Chance to Fly on Light; 2009 the Year in Pictures; We Make It Happen! Wrapping up 2009 (Vol. XXIX No. 6 Nov.- Dec. 2009)
Louis D. Griedman Emily Stewart Lakdawalla Bruce Betts
The Planetary Society /2009T Journal
