[rjsimmon]

I have read a bit from Vera and she truly was brilliant. The issue I am seeing over and over with theories WRT Dark Matter and galactic rotation is the assumption that all of the stellar and cosmic matter is static. Stars rotate, planets rotate, solar systems rotate. This effects gravity and the increasing/decreasing magnitude of the gravitic constant. Each model I have seen presumes only a massive gravity well at the core (black hole) but none for minor black holes or stellar gravity wells. Any model should account for all of the observed gravity wells before any theory can be tested. Additionally, gravitic anomalies such as supernovae, pulsars, etc. need to be accounted for. I just have not seen that done.

[mlo]

"Stars rotate, planets rotate, solar systems rotate. This effects gravity and the increasing/decreasing magnitude of the gravitic constant."

How does rotation affect gravity?

[Conan the Librarian]

I recommend “the 4% Universe” by Panek.

As for what it is, I am still putting my $.02 on unobserved dust and gravel.

But, the gravitation abnormalities caused by black holes and other deep gravity wells may still be part.