Quote:
Originally Posted by CraigS
As well as Dark Matter, Dark Energy is here to stay folks !
Cheers
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I had a thought a few months ago that planetary motion within a Galaxy could produce a motion pulling the outer spiral arms towards the centre giving the effect of dark matter. as we don't have a lot of starts about planetary motion within the Galaxy I thought this may have been a factor.
Since starting university, it looks as though somebody's already looked at angular motion within the Galaxy spiral arms relating to dark matter, and it appears that there is still too much the matter symptoms out there compared to a theoretical possibility of angular motion.
Was a nice thought though, but I am not going to discount it entirely as it may still forma calculation that could be used to determine how much Dark matter there is.
So I'm going to have to start to agree with you that Dark matter and Dark energy are here to stay for a while at least.