Pretty sure we've been through this already, but let's go down it again... That the main emission of light from the sun matches the emission of light from the elements supposedly in it, yet they aren't actually in there?
Are you confusing the emission spectra with absorption spectra? 
I admit a rather rudimentary understanding of spectrography. The point stands that the emission of light by the sun matches with it's supposed main composition of hydrogen. That is to say, it doesn't emit light in a matching absorbtion spectrum of hydrogen.
Why aren't they in contact with UA?
Because they are in contact with the earth... 
Sorry, that means nothing unless you care to elaborate.
I'm afraid I asked you first, so go ahead. We could do that all day, but it comes down to the fact that my side has hundreds if not thousands of people attempting to find it as we speak, while your side simply says, 'We don't know and neither do you, so we're even and we don't have to try and figure it out.'
I don't know. I said that. Moreover, what I said specifically was "How could I know?" If you have a way to determine that answer, please inform me.
That's your problem, not mine. I'm not the one claiming UA even exists when another force, observed in other instances, can very easily substitute for it.
I don't give a tinker's damn if the orthodoxy ever figures out dark energy; in fact, I do not think they can. I only brought it up to show the absurd hypocrisy of your parallel.
What do you want me to say? You're right to disbelieve dark energy and dark matter, as of yet. It hasn't been proven conclusively, all that's been proven is that something is causing phenomena which haven't been explained otherwise. There are those with higher educations working day in and day out to either prove or disprove both, or to come up with a better hypothesis that fits with observed facts, however. Something that can't be said of UA.
A hypothetical cause is needed, and one that can be tested as proven or disproven at some point, as it will be regarded as unproven until it is.
Again, I have no idea what it could be or how it could be tested. What is the disprovable theory of dark energy so far? There isn't one. I freely admit UA is a placeholder. I've done it a score of times or more. We know nothing other than that it happens.
Would you like to know the difference between dark energy and UA? The main one, not the obvious differences in characteristics. Dark energy hasn't got an alternative explanation yet, much less one that explains anything better. UA does have a better alternate explanation, and the same and it's implications explain more with less assumptions.