Just attach a guidance system onto each asteroid that guides descent to the desired location, say, the Mesabi Iron range area. May be a bit of cleanup after impact, but much cheaper.
posted on 02/09/2013 8:05:29 AM PST
(The last thing I want to do is hurt you. But it's still on the list.)
Much cheaper than what? Scooping up what’s there now?
posted on 02/09/2013 8:17:33 AM PST
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