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From: wa2ise@cbnewsb.cb.att.com (robert.f.casey)
Newsgroups: sci.space,sci.astro
Subject: Re: Dark matter
Summary: can't be much unusual dark matter in solar system
Message-ID: <1991Jun17.015931.22959@cbfsb.att.com>
Date: 17 Jun 91 01:59:31 GMT
References: <1991Jun11.165204.6159@isc.rit.edu> <10705@suned1.Nswses.Navy.MIL> <1991Jun15.031134.14353@ux1.cso.uiuc.edu>
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This thought crosses my mind on the topic of dark matter:  There can't be
much of any sort that we are not familiar with in the solar system.  Or else
the laws of Gravitation that Newton discovered would be confused. If the solar
system was imbedded in a sea of unusual dark matter, calculations on the 
interactions between planets wouldn't work out right.  Maybe further out there
is some dark matter to explain the deviations of Neptune that prompted the
search that found Pluto.  
There can't be much in the inner solar system, or else our space probes, 
satellites and moons would travel on paths that wern't correctly predicted.

Any of you rocket scientists in the know have comments?