Then, clambering up to the four suspended chairs in front of the control-panels, we took our places in them; Marlin in the right chair, his telescope and astronomical equipment before him, I in the next one, with the six controls of the space-flier's movements before me, Randall in the third chair, the recording dials and minor controls of the flier before him, and Whitely in the fourth or left chair, the dials and switches of the generators before him. Seated there, the constellation of Sagittarius and the other southern stars were full before us in our big window, for our space-flier was so supported in its framework that by turning on its great force-ray from the lower ray-opening we would be shot out by the terrific repulsive force straight toward Sagittarius, toward Neptune, slanting out tangent-wise from Earth's surface. And now Marlin was peering through the short, strange-looking tube of the telescope, was touching its focusing wheels lightly, peering again, and then turning to me. "Neptune," he said quietly. "We'll start when it reaches the center of this telescope's field of view--when the flier is pointed directly toward it." "But we can maneuver the flier in any direction in space, could head out from Earth and then toward Neptune," Randall commented, as I applied my own eye to the telescope, and Marlin nodded. "We can, but by starting straight toward Neptune we'll use less of our generators' power." While he spoke I was gazing through the telescope, and though I had gazed upon Neptune many times before it was never with such feelings as gripped me now. Like a little pale-green spot of calm light it was, floating there in the darkness of the great void, its single moon not visible to me even through the powerful telescope. Then as I straightened from the telescope's eye-piece Marlin had taken it again, gazing intently into it now, to call out to me the moment when the planet reached the center of its field of view, when our space-flier would be headed straight toward it. For it was then, as Marlin had said, that we planned to hurtle out toward the planet with all the power of our great force-rays, not only reacting but pushing against Earth as light pushes. But since we must necessarily change our course once in space, to allow for Neptune's own movement among other things, we would use less power by making our first start straight toward it.