|   | **** | 1 - Ed.orig.: The Survival Imperative: Using Space to Protect Earth, William E. Burrows
(2005)
 Oxford University Press, USA [english]
- saggistica, H+ | 
|   | *** | 2 - Ed.orig.: Beyond Earth: The Future of Humans in Space, Bob Krone
(2006)
 Collector's Guide Publishing Inc [english]
- saggistica, H+ | 
|   | ** | 3 - Ed.orig.: Entering Space: Creating a Spacefaring Civilization, Robert Zubrin
(2000)
 Tarcher [english]
- saggistica, H+ | 
|   | * | 4 - Ed.orig.: Return to the Moon: Exploration, Enterprise, and Energy in the Human Settlement of Space, Harrison H. Schmitt
(2006)
 Springer [english]
- saggistica, C | 
|   | *** | 5 - Ed.orig.: Mindscan, Robert J. Sawyer
(2005)
 Tor Science Fiction [english] Ed.ita.: 
Mindscan 
(2006)
 Urania, Mondadori, n. 1525
- narrativa, C
 |