The view tank's haze cleared to the standard solar schematic. The scene faded, replaced by a ring of tiny multicolored lights: the Asteroid Belt.
"This display is tailored to the general run of inmates processed through orientation, just to give them an idea where they are. Their familiarity with deep space is often limited, so station lectures start with fundamentals. We'll pass on this."
Brad tensed at Xindral's choice of words, and sensed the others had been similarly alerted. He glanced sideways. His companions, as he, stared at one another as if seeing them for the first time. Were they of a kind?
Xindral continued as if he hadn't noticed.
"A footnote," he said. "The Belt's been cleared of almost all rocks and swarms, plus the big ones that we couldn't use for outposts. As you may recall from your school days, it wasn't easy hauling micro-spunnel terminals around the Belt and ramming rocks into the hoppers for transfer to meltdown and refining above Venus.
"In short, the big space sweeps of five to eight hundred years ago cleared away most of the residue in Belt orbits that had no beneficial purpose and were a hazard to traffic. The Belt was a good source for minerals — while it lasted."
He paused to key the instrument in his hand.
"That's done," he said. "What's left are only a few of the big asteroids, like Ceres. They serve both regions as Solar Spacetrack Centers, communications relays, search and rescue operations, space lanes debris collection teams, urgent care hospitals, and for spunnel gateways management."
As he spoke the ring of lights in the tank flickered. Another ring formed, evenly spaced rods, each glowing a contrasting color.
"The Guardian Stations," Xindral said, "have been in position for more than six centuries. Twenty stations; no more are planned."