The asteroid Julia had chosen to carry the torch of her new world industrial order was sixteen kilometres long, with an irregular width varying between five and eight kilometres, one end flared out into an asymmetrical bulge. One of her Merlin probes had surveyed it fourteen years ago; until then it had been a smear of light in a telescope, and a catalogue number: 2040BA. A fleet of the little robot prospecting craft had been amassing compositional data on the Apollo Amour asteroids for nearly a decade. It was a project Philip Evans had started even before the PSP fell; he had predicted the development of the space industry, and wanted to use the probes to give Event Horizon a data monopoly. Julia had carried on with the Merlin project after his death, launching up to fifteen a year. 2040BA was her reward for persistence; a nickel-iron asteroid orbiting two hundred million kilometres out from the Sun, no different to a hundred others the Merlns had examined. Except at some time in the distant past it had struck a carbonaceous chondritic asteroid. The collision had deposited a thick smear of shale, eight kilometres long, down the flank of 2040BA. It was a sticky tar, rich with nitrogen and carbon and hydrogen, millions of tonnes of them.
They were the chemicals which made New London possible. By itself a nickel-iron asteroid was worth trillions for the metal contained in its ores, but the cost of supporting the teams of miners and refinery operators would have been prohibitive. Every consumable would have to be lifted into orbit for them; even with giga-conductor spaceplanes it would be a marginal venture. To make the investment attractive, a mining team would have to be self-sustaining. At the lowest level that meant hydroponics and vat-grown-meat. At the other end of the scale, space activists dreamt of capturing both nickel-iron and carbonaceous chondritic asteroids and using them in combination to build cylindrical O’Neill colonies, twenty kilometres long, orbiting Gardens of Eden, revitalizing the Earth physically and spiritually.
2040BA allowed Julia to compromise between the two.
The relays of astronaut crews she sent out to 2040BA took two years to capture it. They detonated strategically-placed ten-megaton electron-compression devices at its bulbous end, altering its orbital track and increasing its long-axis rotation.
“I wanted to use nukes,” Julia had confided to Greg and Eleanor once the mission was underway. “Use up all the old superpower arsenals. That would have given people something they could understand and appreciate. The old age visibly going out in a blaze of glory to usher in the new. Now wouldn’t that be a sight?”
She needn’t have worried. People interpreted the asteroid’s arrival as the symbol of the new age. It brought hope to a psychologically leaden world. A technophilic coup d’etat, signalling the end of the worst aspects of the Warming. When you looked up you could see that there was somebody who had the guts and the drive to achieve something again, instead of just muddling through the way things had been going for nearly two decades. The somebody being Julia. It was the capture mission more than anything else-her inheritance, the giga-conductor monopoly, Peterborough’s incredible renewal-that catapulted her into the global public limelight.
The last three months of 2040BA’s journey became the greatest spectator event in human history. Greg had always wondered if it was coincidence that the final electron-compression device was detonated above night-time Europe. Julia working a subtle PR ploy, or Royan crowning their achievement with a typical brass neck gesture? Whichever, after that Julia’s kudos hit the stratosphere.
He could still remember the Last Blast party, it was country-wide. New Year’s Eve plonked down in the middle of a sultry cloudless August night. Hambleton had hosted a street barbecue, the whole village sitting round trestle tables in front of the church. Christine had been about five, but they’d let her stay up.
Eleven thirty-seven: the time was tattooed in his mind. 2040BA was a star brighter than Venus, then the last electron-compression device went off, stabilizing its orbit. A ten-megaton explosion, jetting out an incandescent plume of vaporized rock. The discharge had lasted for about a minute, growing as broad as a full moon before fading to violet and dispersing. They had all watched in silence, children, adults, pensioners, looking straight up; Greg inanely waiting to hear a distant rumble from the explosion.
The mining machines Julia sent up to Earth’s new moonlet cut out a cylindrical chamber five kilometres long and three in diameter, Hyde Cavern. Rotation gave it an Earth-standard gravity. Solar furnaces liberated oxygen from New London’s rock. Event Horizon crews collected the shale smear, shoving it through giant distillation modules, refining all the chemicals necessary for a working biosphere.
Hyde Cavern was given an atmosphere, water, light, warmth, gene-tailored food plants, insects, and soil bacteria. Engineering teams from Event Horizon and various kombinates’ space industry divisions moved in, and began refining the ore in earnest. Microgee-processing factories were boosted up from their low orbit to swarm in attendance; it was cheaper to use New London as a dormitory for the operating crews than costly habitation stations.
Greg could see New London itself through Anastasia’s windscreen, a dark head to the archipelago of high-albedo orbs. The rock’s long axis was orientated north/south, so that it rolled along its orbit. A counter-rotating docking spindle extended a kilometre and a half out of the southern hub, supporting a diamond-shaped solar cell array four kilometres square. The northern hub had a similar spindle, ending in a concave circular solar mirror five kilometres in diameter. It was built up from hexagonal sections a hundred metres across, with a speckle pattern of tiny black spots showing the holes that had been torn in them down the years. A focusing mirror hung two kilometres over the centre, sending the collected beam back down through an aperture in the middle. As he watched, one of the orbs peeped slowly over the mirror’s rim like a small sun rising above the horizon.
The orb was part of the excavation from the second chamber which was currently being hollowed out. A larger one than Hyde Cavern this time, eight kilometres long. The mining machines which cut through the ore crushed it into a residue of fine sand that was a mixture of metal powder and rock dust. It was impelled along the northern hub’s spindle into the foundry plant at its tip, where the mirror focus was aimed. The intense heat combined the rock and metal into a glutinous magma which the foundry crews called slowsilver. It was done for convenience, in freefall any liquid was easier to control and direct than a river of sand, and after mining came the problem of storage.
The slowsilver was pumped through one of a bagpipe array of extrusion pipes out into space in the shadow of the mirror, where it was allowed to accrete until it formed a globe fifty metres in diameter. Then after the outer shell had cooled and solidified the pipe disengaged, setting it loose. The foundry produced a hundred and forty orbs a day, a constant emission of metallic spawn.
Julia had no option but to store the second cavern detritus in this fashion, New London’s refineries and microgee materials-processing modules could only consume a fraction of the mining machines’ daily output. So the orbs accumulated in the archipelago, tens of thousands of them, like an elongated globular cluster staining space behind the asteroid. Some of them were nearly pure silver, others had abstract rainbow swirls frozen into their surface where exotic salts and minerals had curdled and reacted from the heat.
Refinery complexes floated round the fringes of the archipelago; big cylindrical modules, two hundred metres long, forty wide, hanging behind a kilometre-wide solar mirror. Perspective was difficult out here, part of his mind saw the refineries as chrome water lilies drifting on a velvet ocean. Almost an op art canvas. Space hardware had an inherent harshness, he thought, every square centimetre was functional, precise, there were no cool shades nor half colours, white and silver ruled supreme.