More by Lewis, John S.
Mining the sky
Mining the Sky Untold Riches From The Asteroids, Comets, And Planets
Physics and Chemistry of the Solar System
Planets and Their Atmospheres Origins and Evolution
Space Resources Breaking the Bonds of Earth
Worlds Without End: The Exploration Of Planets Known And Unknown (Helix Books)
Resources of Near-Earth Space (Space Science Series)
Comet and Asteroid Impact Hazards on a Populated Earth Computer Modeling
Thanatos Discovery: An Earth in Danger Alternative History, Part One
Rain Of Iron And Ice:
A Rending Clash of Worlds: the Astronomers
Rain Of Iron And Ice: The Very Real Threat Of Comet And Asteroid Bombardment