John C. Mather

It seemed to me that NASA, especially Goddard, was the place where I could carry out the dreams that I had, which were to push forward an experiment that would measure the big bang radiation better than anyone had ever tried before. Therefore, it seemed like the perfect place to go.

Ireland, in breadth, and for wholesomeness and serenity of climate, far surpasses Britain; for the snow scarcely ever lies there above three days: no man makes hay in the summer for winter's provision, or builds stables for his beasts of burden... the island abounds in milk and honey.

The historical novelist has to consider what has actually happened, while the SF writer is dealing in possibilities, but they are both in the business of imagining a world unlike our own and yet connected to it.