Voyage. Stephen Baxter

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СКАЧАТЬ of sparky debating exercise they’d enjoyed so many times in the past. NERVA seemed to symbolize, to her, a lot of her unease about the way her country was being run. And eventually that seemed to get through to Mike. Impatiently, he’d shown her schemes to trap the hydrogen venting, to bury the expended cores more deeply …

      Somehow that didn’t help. Obviously Mike was smart enough to understand the issues that concerned her, but it was pretty clear he didn’t care; not as much as he cared about a successful project, anyhow.

      She loved Mike. She believed. And he loved her. But, she thought, their disparate lives, their different perspectives over the value of projects like NERVA, all of it was steadily pulling them apart.

      They’d gone out to Jackass Flats, she recalled, just six months after they’d met. And that was all of three years ago. Maybe she should start regarding those first happy six months as the anomaly, not the norm.

      Meanwhile, in March – four months into Mariner’s orbital survey – the first detailed maps of Mars had begun to appear from the US Geological Survey people, at Flagstaff. York had got hold of copies of these, and pored over them.

      Mars was very different from what anyone had expected.

      Mars was asymmetrical. The whole of the southern hemisphere was swollen, the land lifted well above the datum level, and heavily cratered. The northern hemisphere was mostly below the datum, and was a lot smoother than the south … but the north had Tharsis.

      Tharsis was a bulge in the planet the size of southern Africa. It was as if a quarter of the whole surface of Mars had been lifted up by some colossal event. The bulge was surrounded by an array of cracks and grooves: to the east of Tharsis, in the Coprates region, a huge canyon system stretched nearly a quarter of the way around the circumference of the planet.

      The ancient cratered terrain in the south was cut by gullies and channels which seemed to have been incised by running water. York was entranced by images of Moon-like craters, eroded by flash floods. But there was no sign of water on the surface now, in the quantities needed to cut the gullies; maybe the water had escaped from the atmosphere, or was trapped under the surface.

      It was this that intrigued her about Mars, she’d decided, this mix of exposed, lunar terrain and Earth-like weathering, a combination that made up an extraordinary world: neither Earthlike nor lunar, but uniquely Martian.

      But it had nothing to do with her.

      The work she was doing, she’d long realized, was building up into an unspectacular, if solid, career. She was becoming just another rock hound: her future was probably in commercial geology, and would be spent in messy oil fields, or mines. She could expect a life of heat, cold, rattlesnakes, cow pies, poison oak …

      The prospect left her pole-axed with boredom.

      She never got to see Mike. She wasn’t interested in her work. And, meanwhile, she spent her spare time imagining geologic traverses across the ancient, battered surface of Mars.

      What it amounted to, she told herself with brutal frankness, was that her personal life had been on hold for, hell, years. Just like her professional life.

      She felt a germ of a new resolution somewhere inside her, like a dust mote around which a new future might crystalize.

      I got to get closer to this Mars stuff. And not for Mike, not even for Ben Priest. For me.

      There might be a way. Maybe she could transfer into the Space Sciences Laboratory, right here at Berkeley, that big white building on top of Grizzly Peak.

      She got out of bed, dug out her loose-leaf folder of Mars photos, and began to study the eroded craters again.

       Thursday, June 7, 1973 Lyndon B. Johnson Space Center, Houston (formerly Manned Spacecraft Center)

      Phil Stone was the first to understand Seger’s suggestion.

      ‘My God,’ he said. ‘You’re going to send us to the Moon. Aren’t you?’

      ‘Yes. Yes, that’s right. That’s what I’m considering. I want to reassign your mission a Saturn V, and send you to lunar orbit.’

      Chuck Jones stared at Seger, astonishment crinkling up his squat face. ‘Like hell you will.’

      For long seconds, the three of them sat in silence.

      Stone felt stunned; here in this sterile, mundane office, on an ordinary Thursday morning, it was impossible to absorb such news.

      Skylab B, the second Earth-orbital Saturn Wet Workshop, was to have been Stone’s first flight into space. He’d already been training on the science and operational aspects of the mission for months. And now Seger was thinking of changing it all around, and sending him to the Moon? Jesus.

      Seger played with the carnation in his lapel. ‘You got to look at the bigger picture. The NERVA is slipping again, so its program of test flights is being cut. And that’s freed up a Saturn V. And we need to use it, or we’ll lose it. And I want to use it to send you boys to lunar orbit.’

      Stone frowned. ‘It’s a man-rated Saturn V, for God’s sake. It’s already built. How can we lose it?’

      Seger shrugged. ‘We may have built the thing, but we haven’t yet spent the money to make it fly.’

      ‘We can’t go to the fucking Moon,’ Chuck Jones said. ‘We’re still waiting on the J-2S.’ Lunar orbital workshops were planned, but a few years down the road, following extensive modifications to the S-IVB: the upgraded J-2S main engine, additional payload capacity, a self-ullaging system, electrical heating blankets and mylar insulation, additional batteries, upgraded electronics … ‘The fucking S-IVB doesn’t have the power to inject itself into lunar orbit.’

      ‘No, it doesn’t. But it doesn’t need to. Look at this.’ Seger had a glossy presentation on his desk; he handed them copies.

      Stone looked quickly. It was a summary of an old McDonnell-Douglas study called LASSO – Lunar Applications on a Spent S-IVB Stage (Orbital). It showed how Saturn components could be used to establish lunar orbit workshops of varying complexity and weight. It was full of cutaway isometric diagrams and color pictures and big bold bullet-point blocks of text, and – naturally, as it came from the manufacturers of the S-IVB – it was relentlessly optimistic: some of the projected dates were already in the past.

      ‘Look at Baseline 1.’ Seger pointed to sections of the presentation. ‘That shows how we can take a workshop to lunar orbit without the J-2S upgrade, or any of the rest of it …’

      A Saturn V would be launched looking superficially like those for the Apollo landing flights. But instead of a Lunar Module, the booster would carry an airlock module, fixed to the front of the third stage.

      The S-IVB would send the spacecraft toward the Moon. Just like the landing missions. But, once exhausted, the third stage wouldn’t be discarded. The Apollo would decouple and dock with the empty stage via the airlock adapter. The stack would follow a long, lower-energy trajectory to the Moon: a day and a half more than the three-day landing flights. Then the Apollo Service Module’s main engine would be used to brake the whole stack into lunar orbit.

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