Mining the Sky : Untold Riches from the Asteroids, Comets, and Planets
by John S. Lewis
· · Islands in the Sky : Bold New Ideas for Colonizing Space (Wiley Popular
Science); Stanley Schmidt(Editor), Robert Zubrin (Editor)
· · The Millennial Project : Colonizing the Galaxy in Eight Easy Steps;
Marshall
T. Savage, Arthur Charles Clarke (Introduction)
· · The Case for Mars : The Plan to Settle the Red Planet and Why We Must;
Robert Zubrin, Richard Wagner
· · Living in Space; G. Harry Stine