Do Away With Dark Energy Using Space Dusts

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Larry Burford</i>
<br />what do they really mean when they say there is a "halo" of dark matter around a galaxy?<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">The observed rotation speeds require that the invisible dark matter have a mass M proportional to its distance R from the galaxy's center. Then the force law changes from GM/R^2 to GM/R, where M is the visible mass. -|Tom|-

When I first read this, I mis-read it as "inversely proportional" to R. And of course it didn't make sense.

Holy sh*t.

It's not so much that there is a halo of dark matter around each galaxy. It's more like each galaxy is centered inside of a small void within an otherwise universal atmosphere of dark matter.

Just about the exact inverse of the elysium ocean of MM.

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Now I understand why they claim this means that 96% or more of the mass of the universe is dark matter.

But I still don't understand why any grown up would believe it. What is it about galaxies that repels dark matter?

LB