The Complete Mars Trilogy. Kim Stanley Robinson

he talked to Ann when they were alone, who knew?

      Nadia worked the valve into its stop position, then shut the whole pump down. “We’ll have to use thicker insulation this far north,” she said to no one in particular as she took her tools back to the rover. She was tired of all the sniping, anxious to get back to base camp and her work. She wanted to talk with Arkady; he would make her laugh. And without trying, or even knowing exactly how, she would make him laugh too.

      They put a few chunks of the ice spill in among the rest of the samples, and set out four transponders to guide robot pilots around the spill. “Although it may sublime away, right?” Nadia said.

      Ann, lost in thought, didn’t hear the question. “There’s a lot of water up here,” she muttered to herself, sounding worried.

      “You’re damned right there is,” Phyllis exclaimed. “Now why don’t we have a look at those deposits we’ve spotted at the north end of Mareotis?”

      As they got closer to base Ann became more close-mouthed and solitary, her face held tight as a mask. “What’s the matter?” Nadia asked one evening, when they were out together near sunset, fixing a defective transponder.

      “I don’t want to go back,” Ann said. She was kneeling by an isolated rock, chipping at it. “I don’t want this trip to end. I’d like to keep traveling all the time, down into the canyons, up to the volcano rims, into the chaos and the mountains around Hellas. I don’t ever want to stop.”

      She sighed. “But … I’m part of the team. So I have to climb back into the hovel with everyone else.”

      “Is it really that bad?” Nadia said, thinking of her beautiful barrel vaults, of the steaming whirlpool bath and a glass of icy vodka.

      “You know it is! Twenty-four and a half hours a day underground in those little rooms, with Maya and Frank running their political schemes, and Arkady and Phyllis fighting over everything, which I understand now, believe me – and George complaining and John floating in a fog and Hiroko obsessed by her little empire – Vlad too, Sax too … I mean, what a crowd!”

      “They’re no worse than any other. No worse and no better. You have to get along. You couldn’t be here all by yourself.”

      “No. But it feels like I’m not here anyway, when I’m at the base. Might as well be back on the ship!”

      “No, no,” Nadia said. “You’re forgetting.” She kicked the rock Ann was working on, and Ann looked up in surprise. “You can kick rocks, see? We’re here, Ann. Here on Mars, standing on it. And every day you can go out and run around. And you’ll be taking as many trips as anyone, with your position.”

      Ann looked away. “It just doesn’t seem like enough, sometimes.”

      Nadia stared at her. “Well, Ann: it’s radiation keeping us underground more than anything. What you’re saying in effect is that you want the radiation to go away. Which means thickening the atmosphere, which means terraforming.”

      “I know.” Her voice was tight, so tight that suddenly the careful matter-of-fact tone was lost and forgotten: “Don’t you think I know?” She stood and waved the hammer. “But it isn’t right! I mean I look at this land and, and I love it. I want to be out on it traveling over it always, to study it and live on it and learn it. But when I do that, I change it – I destroy what it is, what I love in it. This road we made, it hurts me to see it! And base camp is like an open pit mine, in the middle of a desert never touched since time began. So ugly, so … I don’t want to do that to all of Mars, Nadia, I don’t. I’d rather die. Let the planet be, leave it wilderness and let radiation do what it will. It’s only a statistical matter anyway, I mean if it raises my chance of cancer to one in ten, then nine times out of ten I’m all right!”

      “Fine for you,” Nadia said. “Or for any individual. But for the group, for all the living things here – the genetic damage, you know. Over time it would cripple us. So, you know, you can’t just think of yourself.”

      “Part of a team,” Ann said dully.

      “Well, you are.”

      “I know.” She sighed. “We’ll all say that. We’ll all go on and make the place safe. Roads, cities. New sky, new soil. Until it’s all some kind of Siberia or Northwest Territories, and Mars will be gone and we’ll be here, and we’ll wonder why we feel so empty. Why when we look at the land we can never see anything but our own faces.”

      On the sixty-second day of their expedition they saw plumes of smoke over the southern horizon, strands of brown, gray, white and black rising and mixing, billowing into a flat-topped mushroom cloud that wisped off to the east. “Home again home again,” Phyllis said cheerily.

      Their tracks from the trip out, half-filled by dust, led them back toward the smoke: through the freight landing zone, across ground crisscrossed with treadmarks, across ground trampled to light red sand, past ditches and mounds, pits and piles, and finally to the great raw mound of the permanent habitat, a square earthen redoubt now topped by a silvery network of magnesium beams. That sight piqued Nadia’s interest, but as they rolled on in she could not help noticing the litter of frames, crates, tractors, cranes, spare part dumps, garbage dumps, windmills, solar panels, water towers, concrete roads leading east west and south, air miners, the low buildings of the alchemists’ quarter, their smokestacks emitting the plumes they had seen; the stacks of glass, the round cones of gray gravel, the big mounds of raw regolith next to the cement factory, the small mounds of regolith scattered everywhere else. It had the disordered, functional, ugly look of Vanino or Usman or any of the Stalinist heavy industry cities in the Urals, or the oil camps of Yakut. They rolled through a good five kilometers of this devastation; and as they did Nadia did not dare to look at Ann, who sat silently beside her, emanating disgust and loathing. Nadia too was shocked, and surprised at the change in herself; this had all seemed perfectly normal before the trip, indeed had pleased her very much. Now she was slightly nauseated, and afraid Ann might do something violent, especially if Phyllis said anything more. But Phyllis kept her mouth shut, and they rolled into the tractor lot outside the northern garage and stopped. The expedition was over.

      One by one they plugged the rovers into the wall of the garage and crawled through the doors. Familiar faces crowded around, Maya and Frank and Michel and Sax and John and Ursula and Spencer and Hiroko and all the rest, like brothers and sisters really, but so many of them that Nadia was overwhelmed, she shrivelled like a touched anenome, and had trouble talking. She wanted to grasp something she could feel escaping her, she looked around for Ann and Simon, but they were trapped by another group and seemed stunned, Ann stoical, a mask of herself.

      Phyllis told their story for them. “It was nice, really spectacular, the sun shone all the time, and the ice is really there, we’ve got access to a lot of water, it’s like the Arctic when you’re up on that polar cap …”

      “Did you find any phosphorus?” Hiroko asked. Wonderful to see Hiroko’s face, worried about the shortage of phosphorus for her plants. Ann told her that she had found drifts of sulphates in the light material around the craters in Acidalia, so they went off together to look at the samples. Nadia followed the others down the concrete-walled underground passageway to the permanent habitat, thinking about a real shower and fresh vegetables, half-listening to Maya give her the latest news. She was home.

      Back to work; and as before, it was unrelenting and many-faceted, an endless list of things to do, and never enough time, because even though some tasks took much less human time than Nadia had expected, being robot-adequate, everything else took much more. And none of it gave her the same joy as building the barrel vault chambers, even if it was interesting in the technical sense.

      If they wanted the central square under the dome to be any use, they had to lay a foundation that from bottom to top was composed of gravel, concrete, gravel, fiberglass, regolith, and finally treated soil. The dome itself would be made of double panes of thick treated glass, to hold the pressure and to cut down on UV rays, and a certain percentage of cosmic radiation. When all of it was done, they would