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Mmmm a luminos cloud would not be hard to replicate...send up some smoke and hit it with a spot light .. Or a projector.
I do think there is a case for many cultures where they are trying to relate to off planet entites.
Such doesn't have to have real aliens but merely a perception on the part of of the artists and their attempt to reflect their belief I suppose.
Overall it seems a lot of humans want contact and have wanted contact for most of our history. But correctly art is best interpreted when considered in it's cultural context.
However I doubt contact will ever be made.
The view could be taken that space travel required time and energy.
The gas bill for any journey is huge.
One would need five generations of humans to reach interesting stuff.
Meaning full space travel will always be beyond us and them as well.
To answer the question...if we could where would we go...it will be one way trip as well....
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