Title rated 4 out of 5 stars, based on 14 ratings(14 ratings)
DVD, 2014
Current format, DVD, 2014, , Available .
DVD, 2014
Current format, DVD, 2014, , Available . Offered in 0 more formats
From the width of a football field to the size of a small city, the space rocks called asteroids have the potential to be killers. But some asteroids may be loaded with billions of dollars' worth of iron, nickel and even platinum. Will asteroids turn out to be our economic salvation-or instruments of extinction?
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