An unsurprising conclusion to draw - Jane had been much the same, and Thor gives a similar answer. "What you call science, your ancestors would have called magic." It may not be a satisfactory answer, but Jane was never satisfied with his explanations either, her frame of reference too different from his own to fully reconcile happily.

It's quaint, isn't it, how humans so often refer to things as being 'from space' as if their own planet was not. Thor smiles at the thought, not so much at the subject of discussion. "Frost giants, from the realm of Jotunheim. They invaded Midgard fifteen centuries past, starting with a land called Norway. My father led the charge to repel them from your borders."