On Thu, 25 Jul 2002, Michael Wallis wrote:
> My concern is still the failure mode of some tired space miner
> shooting his pile of refined metal into the Earth instead of beside it...
I think the answer is that the tired space miner sells his pile to the
intended customer *before* shooting it, rather than afterward. The
shooting is then done by professionals with Reentry Pilot licences, who do
it routinely and have multiply-redundant navigation and insurance against
screwups.
It will, in any case, be necessary to limit use of aerobraking reentry
eventually. It creates noticeable amounts of nitrogen oxides in the upper
atmosphere, and probably isn't a good thing in really large quantities.
Henry Spencer
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