<p>The aerospace industry has more potential than mining until Elon Musk reaches his goal of mining asteroids - then mining may be better. <a href=“http://www.slate.com/articles/technology/future_tense/2012/05/asteroid_mining_the_crazy_awesome_plan_to_grab_platinum_from_outer_space_.html[/url]”>http://www.slate.com/articles/technology/future_tense/2012/05/asteroid_mining_the_crazy_awesome_plan_to_grab_platinum_from_outer_space_.html</a></p>