I would say that the image used is reminiscent of a jet of some sort, but it looks to me as if there is some heavy photoshop in use. The description is definitely fantasy.
I just can't put my finger on where I saw a similar image, the only other piece of trivia I remember is that the image is actually a small movie of 20 frames of some astronomical object taken over a relatively long period of time.
Solfe
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'That was tops! Who's not good at math? I was all, "Four!"' - Finn, Adventure Time.