Anyhow they had gotten off the pad. The acceleration had been low at first. But as the engines far below had swivelled from side to side to adjust the direction of thrust, the two astronauts, stuck at the top of the stack, had been thrown back and forth, like ants clinging to the tip of a car antenna.

Then had come the violence of staging, as first the solid rocket boosters and then the big main engine cluster had cut out. Malenfant had been thrown forward against his harness, crashing his helmeted head against the curving bulkhead before him. After a heart-stopping moment of drift, the second stage had cut in, thrusting him back into his seat once more.

That second-stage burn had seemed to go on and on — six, seven, eight minutes, their craft growing lighter as fuel burned off, their velocity piling on. Not for Malenfant and Nemoto the old Apollo luxury of taking a couple of swings around the Earth to check out the systems; the BDB’s last contribution had been to hurl them on a direct-ascent trajectory all the way out of Earth’s gravity well without pausing.

Just ten minutes after leaving the pad at Vandenberg, the second stage finally cut out. Malenfant and Nemoto had listened to the clunk of the burnt-out stage disengaging itself from the lander, and the bull-snorts of nose-mounted attitude thrusters turning their little craft so it pointed nose-first to the Earth — ten minutes gone, and already Malenfant was bound irrevocably for the Moon.

Still the Earth shrank.

“There she goes,” he murmured. “I feel as if I’m driving a car into a long, dark tunnel…”

It struck him that Nemoto hadn’t said a single word since the pad rats had strapped them into their couches. Now, as they watched the Earth fall away, her small hand crept into his.

And then they broke. They began to work from panel to panel, throwing switches and checking dials, working through their post-insertion checklist, configuring the software that would run the craft’s life support systems. Necessary work without which they would not survive, not even for an hour.

New Moon or old, Earth’s satellite orbited just as far from the mother planet, and so it was going to take them three days to get there, just as it always had. But because they were flying backwards, they weren’t going to be able to see the Red Moon itself. Not until they got there.

For the first few hours the abandoned BDB second stage trailed after them, following its own independent path. It was scheduled to sail past the Moon and fly into interplanetary space. The stage was a lumpy cylinder, shining bright in the intense sunlight. Malenfant could clearly see the details of the attachment mechanisms at its upper face, and how its thin walls had crumpled during the launch. But it was venting unburnt fuel from three or four places. The small thrust of the fuel vents was making it tumble, like a garden sprinkler, and it was surrounded by a cloud of frozen fuel droplets that glimmered like stars.

The stage’s subtly modified path was bringing it closer to the lander than Malenfant would have liked, at one point no more than a few hundred feet away. He stayed strapped into his seat, watching this potential hazard, and weighing up options. But after a couple more hours the stage began to drift away of its own accord.

When the lander was alone in the emptiness, Malenfant felt an odd pang of loneliness, and almost wished the booster stage would come swimming back, like some great metal whale.

After six hours in space, twelve since they had been woken before the launch, they unbuckled.

Malenfant felt a surge of validating freedom as he found himself floating up from his couch. His treacherous stomach gave a warning growl, however. Throwing up in this confined space would be even more of a catastrophe than on Shuttle. He turned his back and popped a couple of tabs, trusting that the queasiness would pass.

Awkwardly, helping each other, they stripped out of their launch suits. Now they would wear lightweight jumpsuits and cloth bootees, all the way to the Red Moon.

The X-38, hastily modified from a Space Station bail-out craft, was just thirty feet long, an ungainly shape the pilots likened to a potato with fins. Malenfant and Nemoto had been given couches in the rounded bulge at the craft’s rear. The craft, designed for a couple of hours” flight down to Earth from low orbit, had been crammed with gear to keep them alive for ten, eleven, twelve days, the time it would take to reach the Red Moon, and come straight back again, if the natives didn’t look friendly. Much of its interior was too cramped for the crew even to sit upright — but then, in its primary bail-out mode carrying injured or even unconscious crew back to Earth, reclining couches would have sufficed.

To the rear end of the lander was fixed a liquid-rocket pack. The engine and propellants were based on the simple, reliable systems of the old Apollo Lunar Module. This engine would be used to decelerate them into lunar orbit, and then, if they chose to commit, to slow them further, until the lander began its long glide down into the atmosphere, shedding its heat of descent in a long series of aerodynamic manoeuvres, much like the Shuttle orbiter’s entry to Earth’s atmosphere.

During the last stages of the descent, a big blue and white parafoil, a steerable parachute a hundred and fifty feet wide, would blossom from the lander’s rear compartment. That would be quite a ride. The parafoil, the largest steerable “chute ever made, would be controlled by warping its wings, which was just the way the Wright brothers had steered their first ever manned flying machine. That seemed somehow appropriate. Anyhow, thus they would steer their way to a final descent, landing gently on skids.

In theory.

In fact they wouldn’t be steering the craft anywhere. The whole descent was automated. This was something against which Malenfant had fought hard. To give up control of the rudders and flaps to some virus-ridden computer program went against every instinct he’d built up in thirty years of flying. But it was much easier and simpler for the engineers to devise a lander that could fly itself all the way down than to figure out how to give a pilot control. Trust us, Malenfant. Trust the machine.

The facilities were not glamorous, even compared to the Station and the Shuttle. To wash Malenfant had to strip to the buff and give himself a sponge-bath. It took longer to chase down floating droplets of water and soap than to bathe in the first place.

The toilet arrangements were even more basic. There was no lavatory compartment, as in the Shuttle and Station, so they were thrown back to arrangements no more advanced than those used on Apollo, and earlier. There were receptacles for their urine, which wasn’t so bad as long as you avoided spillage, but for anything more serious you had to strip to the buff again and try to dump your load into plastic bags you clamped over your ass with your hands.

In this cramped environment they had, of course, absolutely no privacy from each other. But it never became a problem. Nemoto was twenty-five years old, with a fine, lithe figure; but Malenfant never found her distracting — and vice versa applied, so far as he could tell. Their relationship was prickly, but they were easy together, even intimate, but like siblings.

It was as if he had known this odd, quiet girl for a long time. In some other life, perhaps.

After eighteen hours awake, they prepared for sleep.

Malenfant had always had trouble sleeping on orbit. Every time his thoughts softened he seemed to drift up out of his couch, no matter how well he strapped himself down, and jerk himself to wakefulness, fearful of falling.

And on this trip it was even worse. He was acutely aware that he had travelled far from home this time — in particular, far beyond the invisible ceiling of Earth’s magnetic field, which sheltered the world’s inhabitants from the lethal radiation which permeated interplanetary space. When Malenfant closed his eyes he would see flashes and sparks — trails left in the fluid of his eyeballs by bits of flying cosmic debris that had come fizzing out of some supernova a hundred thousand years ago, perhaps — and he folded over on himself, imagining what that cold rain was doing to his vulnerable human body.