        Dismissing possibilities of a return trip, he returned to thoughts of the aliens.  Why, of all the places they could have gone, did they come to Earth?  Did they hear radio broadcasts?  Did they find Voyager?  Unlikely, since it was still transmitting, as far as he knew.  NASA probably wouldn’t keep clear images of an alien spacecraft under their hat.  Well, they might, but someone would leak it in fairly short order.  