Katherine allowed the moment, with all its implications, to sink in. There were still challenges ahead. She watched the men in the dust of the Moon and thought of the orbiting command service module, out of view of the camera, circling the Moon every ninety minutes. Neil Armstrong and Buzz Aldrin on the Moon would have a brief window to get back into the lunar lander and reconnect their dinghy with the mother ship above. After that, it would be three long days on the highway back to Earth, then through the fire of the atmosphere and into the terrestrial ocean below.