_It is problematical whether the enormous distance that lies between the Earth and Neptune is the only reason why so much on that planet remains a mystery to astronomers. If the great sphere were not so remote, much might be revealed to us. What might have happened to some of the other planets, perhaps so much older than the Earth, and what might be found upon them, might easily exceed the pale of human conception. But that is exactly why the subject of the possibilities of life 2000 millions of miles away from us, opens such a fertile field for writers of scientific fiction. And there is no assurance that the sun, for instance, should continue indefin…
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