Re: Dark Matter

We don't see enough microlensing events due to loose Jupiters in
interstellar space. That coupled with the theories with the Big Bang
seems to lead to small particles of non-barryonic matter floating
around. It seems that this stuff does not clump together like regular
barryonic matter does, and passes thru regular barryonic matter without
slowing down. And this stuff doesn't stick to barryonic matter either.
The density of this stuff has to be low enough that the gravitional
interactions of the planets in our solar system are not goofed up, but
high enough to make up enough mass to keep galaxies from spinning
apart. But as the volume of interstellar space is huge compared to the
volume of space inside the solar system, this works out nicely.
There's about 2 kilograms of dark matter particles passing thru the
Earth right now. That ain't much compared to the barryonic matter
inside the Earth, but it sure adds up if you have roughly 2 kilograms
of this stuff in every Earth sized volume of space throughout the
galaxy (density may be a bit higher close to Sun sized stars).

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