Spawn of the Comet

"No seeds such as we know, true. But what, after all, do we know of the types of life to be found on other planets?" "Nothing, of course. Only these didn't come from a planet. They came from a comet." "And who can say a comet is not a disintegrated planet? Or suppose we take the other theory, that it is an eruption from some sun, ours or another. In any event, who can say no life can survive intense heat? Certainly.