 Why does Eppel indicate an orange light when scanning the planet?
But they were disappointed that they found nothing for several hours as they hovered high over the rotation. The E. P. Locator had been designed by Glaser. And there was no denying that the Extraordinary Perception Locator (or Eppel) was a contrary machine. On Earth it had read Positive on a number of crack-pots, including Waxey Sax, a jazz tootler who could not even read music. Finally it signaled the result, the most exasperating result it ever produces: the single orange light. The Little Probe hovered stationary in the light and the moon-town came up under the dawn. There was a man and a woman, and they were clothed either in very bright garments or in no garments at all, but only in a very bright light.
 It wants the crew to make their own judgement, because it doesn't know what to make of it.
 It wants the crew to make their own judgement, because it doesn't know what to make of it.  It senses Ha-Adamah's perception.  It senses the "Old Serpent's" perception.  It senses that an omnipotent being.