Asteroid Mining Could Add Trillions Jul 8, 2013 14:03:22 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by cygo on Jul 8, 2013 14:03:22 GMT An asteroid less than a mile in diameter could hold more than $20 trillion in industrial and precious metalsResources on Earth are limited. Our planet was born with a fixed amount of water, hydrocarbons, nitrogen, and industrial and precious metals.news.yahoo.com/asteroid-mining-could-add-trillions-world-economy-161200809.html;_ylt=A2KJ2UgNScpR9RMAGGnQtDMD