Especially if you are intending the upper atmosphere to absorb what amounts to kilotons of excess energy.
-----Original Message----- From: Henry Spencer [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 25, 2002 12:53 PM To: ERPS Subject: Re: [ERPS] Cute Asteroid 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 [EMAIL PROTECTED] _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list
