1. For more about the possibility of future wars over natural resources, we recommend Resource Wars: A New Landscape of Global Conflict, by Michael T. Klare (New York: Holt, 2002). A good source of data on Solar System objects is Katharina Lodders and Bruce Fegley, Jr., The Planetary Scientist’s Companion (New York: Oxford University Press, 1998). One of the best sources on Solar System resources is the very readable John S. Lewis’s Mining the Sky (Reading, MA: Addison-Wesley, 1996). A somewhat more venerable treatment of the same topic, authored by an ex-astronaut, is Brian O’Leary’s The Fertile Stars (New York: Everitt House, 1981).
2. Technical treatments of NEO resources and NEO mining possibilities can be found in two scientific papers published in “Near-Earth Resources,” (Gertsch, Remo, and Sour Gertsch) and Mining Near-Earth Resources” (Gertsch, Sour Gertsch, and Remo), published in the proceedings of the U. N.-sponsored conference at which they were presented: John L. Remo, ed., Near Earth Objects, Annals of the New York Academy of Sciences, 1997, Vol. 822.