Asteroid: Earth Destroyer or New Frontier?

Asteroids sling through space, celestial debris of diverse origins: leftovers from the formation of the solar system, broken offshoots of parental asteroids, or comets that have lost their glow. For the first time in a popular book, Patricia Barnes-Svarney discloses how some asteroids - rich in precious minerals such as gold and platinum - may one day be lassoed and mined by man. She also explores how the natural resources that abound in some asteroids could possibly support human life, lea...