- #1
billy_boy_999
- 131
- 0
i don't understand how dark matter acts upon the rotation of a galaxy. galaxy rotation doesn't work the same way that solar system rotation does in that it's not a simple gradient of further planets rotate slower, right? nor is it further planets rotate faster, like a vinyl record...i take it our galaxy's rotation is a tad more complex, can anyone explain more lucidly the problems we have run into with trying to figure out the gravitational workings of our galaxy and how dark matter enters into the equation?