The stream of data taken in by the cameras flashed back to preprocessors in the low-level control room, and from there via cable to the surface of Ganymede. After encoding by the computers in the Site Operations Control building, it was relayed by microwave repeaters seven hundred miles to Ganymede Main Base, restored to full strength, and redirected up to the orbiting command ship. Here, the message was fed into the message exchange and scheduling processor complex, transformed into high-power laser modulations, and slotted into the main outgoing signal beam to Earth. For over an hour the data streaked across the Solar System, covering 186,000 miles every second, until the sensors of the long-range relay beacon, standing in Solar orbit not many million miles outside that of Mars, fished it out of the void, a microscopic fraction of its original power. Retransmission from here found the Deep Space Link Station, lodged in Trojan equilibrium with Earth and Luna, and eventually a synchronous communications satellite hanging high over the central USA, which beamed it down to a ground station near San Antonio. A landline network completed the journey to UNSA Mission Control, Galveston, where the information was greedily consumed by the computers of Operational Command Headquarters.

The Jupiter Four command ship had taken eleven months to reach the giant planet. Within four hours of the event, the latest information to be gathered by the mission was safely lodged in the data banks of UN Space Arm.

Chapter Fourteen

The discovery of the giant spaceship, frozen under the ice field of Ganymede, was a sensation but, in a sense, not something totally unexpected. The scientific world had more or less accepted as fact that an advanced civilization had once flourished on Minerva; indeed, if the arguments of the orthodox evolutionists were accepted, at least two planets—Minerva and Earth—had supported high-technology civilizations to some extent at about the same time. It did not come as a complete surprise, therefore, that man's persistent nosing around the Solar System should uncover more evidence of its earlier inhabitants. What did surprise everybody was the obvious anatomical difference between the Ganymeans—as the beings on board the ship soon came to be called—and the common form shared by the Lunarians and mankind.

To the still unresolved question of whether the Lunarians and the Minervans had been one and the same or not, there was immediately added the further riddle: Where had the Ganymeans come from, and had they any connection with either? One bemused UNSA scientist summed up the situation by declaring that it was about time UNSA established an Alien Civilizations Division to sort out the whole damn mess!