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THE SHOULDERS OF GIANTS

ROBERT J. SAWYER

Robert J. Sawyer is the author of twenty novels, including Hominids, which won the Hugo Award, The Terminal Experiment, which won the Nebula Award, and Mindscan, which won the John W. Campbell Memorial Award. He has also won ten Aurora Awards, three Seiun Awards, and is the only three-time winner of Spains prestigious UPC Award, which bestows the largest cash prize in all of science fiction.

Sawyers novel Flashforward is currently being adapted for television and is scheduled to air on ABC this fall. His latest novel project is the WWW trilogy, consisting of Wake, Watch, and Wonder. The first volume, Wake, was recently serialized in the pages of Analog and was released in hardcover in April.

The Shoulders of Giants, which first appeared in the anthology Star Colonies, is Sawyers attempt to capture the sense of wonder that drew him to science fiction in the first place. The title, he said, is a tip of the hat to Asimov, Clarke, Clement, Herbert, Niven, and all the others upon whose shoulders the SF writers of my generation are fortunate enough to stand.

It seemed like only yesterday when Id died, but, of course, it was almost certainly centuries ago. I wish the computer would just tell me, dammitall, but it was doubtless waiting until its sensors said I was sufficiently stable and alert. The irony was that my pulse was surely racing out of concern, forestalling it speaking to me. If this was an emergency, it should inform me, and if it wasnt, it should let me relax.

Finally, the machine did speak in its crisp, feminine voice. Hello, Toby. Welcome back to the world of the living.

Where Id thought Id spoken the word, but no sound had come out. I tried again. Where are we?

Exactly where we should be: decelerating toward Soror.

I felt myself calming down. How is Ling?

Shes reviving, as well.

The others?

All forty-eight cryogenics chambers are functioning properly, said the computer. Everybody is apparently fine.

That was good to hear, but it wasnt surprising. We had four extra cryochambers; if one of the occupied ones had failed, Ling and I would have been awoken earlier to transfer the person within it into a spare. Whats the date?

16 June 3296.

Id expected an answer like that, but it still took me back a bit. Twelve hundred years had elapsed since the blood had been siphoned out of my body and oxygenated antifreeze had been pumped in to replace it. Wed spent the first of those years accelerating, and presumably the last one decelerating, and the rest

the rest was spent coasting at our maximum velocity, 3,000 km/s, one percent of the speed of light. My father had been from Glasgow; my mother, from Los Angeles. They had both enjoyed the quip that the difference between an American and a European was that to an American, a hundred years was a long time, and to a European, a hundred miles is a big journey.

But both would agree that twelve hundred years and 11.9 light-years were equally staggering values. And now, here we were, decelerating in toward Tau Ceti, the closest sunlike star to Earth that wasnt part of a multiple-star system. Of course, because of that, this star had been frequently examined by Earths Search for Extraterrestrial Intelligence. But nothing had ever been detected; nary a peep.

I was feeling better minute by minute. My own blood, stored in bottles, had been returned to my body and was now coursing through my arteries, my veins, reanimating me.

We were going to make it.

Tau Ceti happened to be oriented with its north pole facing toward Sol; that meant that the technique developed late in the twentieth century to detect planetary systems based on subtle blueshifts and redshifts of a star tugged now closer, now farther away, was useless with it. Any wobble in Tau Cetis movements would be perpendicular, as seen from Earth, producing no Doppler effect. But eventually Earth-orbiting telescopes had been developed that were sensitive enough to detect the wobble visually, and

It had been front-page news around the world: the first solar system seen by telescopes. Not inferred from stellar wobbles or spectral shifts, but actually seen. At least four planets could be made out orbiting Tau Ceti, and one of them

There had been formulas for decades, first popularized in the RAND Corporations study Habitable Planets for Man. Every science-fiction writer and astrobiologist worth his or her salt had used them to determine the life zonesthe distances from target stars at which planets with Earthlike surface temperatures might exist, a Goldilocks band, neither too hot nor too cold.

And the second of the four planets that could be seen around Tau Ceti was smack-dab in the middle of that stars life zone. The planet was watched carefully for an entire yearone of its years, that is, a period of 193 Earth days. Two wonderful facts became apparent. First, the planets orbit was damn near circularmeaning it would likely have stable temperatures all the time; the gravitational influence of the fourth planet, a Jovian giant orbiting at a distance of half a billion kilometers from Tau Ceti, probably was responsible for that.

And, second, the planet varied in brightness substantially over the course of its twenty-nine-hour-and-seventeen-minute day. The reason was easy to deduce: most of one hemisphere was covered with land, which reflected back little of Tau Cetis yellow light, while the other hemisphere, with a much higher albedo, was likely covered by a vast ocean, no doubt, given the planets fortuitous orbital radius, of liquid wateran extraterrestrial Pacific.

Of course, at a distance of 11.9 light-years, it was quite possible that Tau Ceti had other planets, too small or too dark to be seen. And so referring to the Earthlike globe as Tau Ceti II would have been problematic; if an additional world or worlds were eventually found orbiting closer in, the systems planetary numbering would end up as confusing as the scheme used to designate Saturns rings.

Clearly a name was called for, and Giancarlo DiMaio, the astronomer who had discovered the half-land, half-water world, gave it one: Soror, the Latin word for sister. And, indeed, Soror appeared, at least as far as could be told from Earth, to be a sister to humanitys home world.

Soon we would know for sure just how perfect a sister it was. And speaking of sisters, wellokay, Ling Woo wasnt my biological sister, but wed worked together and trained together for four years before launch, and Id come to think of her as a sister, despite the press constantly referring to us as the new Adam and Eve. Of course, wed help to populate the new world, but not together; my wife, Helena, was one of the forty-eight others still frozen solid. Ling wasnt involved yet with any of the other colonists, but, well, she was gorgeous and brilliant, and of the two dozen men in cryosleep, twenty-one were unattached.

Ling and I were co-captains of the Pioneer Spirit. Her cryocoffin was like mine, and unlike all the others: it was designed for repeated use. She and I could be revived multiple times during the voyage, to deal with emergencies. The rest of the crew, in coffins that had cost only $700,000 a piece instead of the six million each of ours was worth, could only be revived once, when our ship reached its final destination.

Youre all set, said the computer. You can get up now.

The thick glass cover over my coffin slid aside, and I used the padded handles to hoist myself out of its black porcelain frame. For most of the journey, the ship had been coasting in zero gravity, but now that it was decelerating, there was a gentle push downward. Still, it was nowhere near a full g, and I was grateful for that. It would be a day or two before I would be truly steady on my feet.

My module was shielded from the others by a partition, which Id covered with photos of people Id left behind: my parents, Helenas parents, my real sister, her two sons. My clothes had waited patiently for me for twelve hundred years; I rather suspected they were now hopelessly out of style. But I got dressedId been naked in the cryochamber, of courseand at last I stepped out from behind the partition, just in time to see Ling emerging from behind the wall that shielded her cryocoffin.

Morning, I said, trying to sound blas'e.

Ling, wearing a blue and gray jumpsuit, smiled broadly. Good morning.

We moved into the center of the room, and hugged, friends delighted to have shared an adventure together. Then we immediately headed out toward the bridge, half-walking, half-floating, in the reduced gravity.

Howd you sleep? asked Ling.

It wasnt a frivolous question. Prior to our mission, the longest anyone had spent in cryofreeze was five years, on a voyage to Saturn; the Pioneer Spirit was Earths first starship.

Fine, I said. You?

Okay, replied Ling. But then she stopped moving, and briefly touched my forearm. Did youdid you dream?

Brain activity slowed to a virtual halt in cryofreeze, but several members of the crew of Cronusthe Saturn missionhad claimed to have had brief dreams, lasting perhaps two or three subjective minutes, spread over five years. Over the span that the Pioneer Spirit had been traveling, there would have been time for many hours of dreaming.

I shook my head. No. What about you?

Ling nodded. Yes. I dreamt about the strait of Gibraltar. Ever been there?

No.

Its Spains southernmost boundary, of course. You can see across the strait from Europe to northern Africa, and there were Neandertal settlements on the Spanish side. Lings Ph.D. was in anthropology. But they never made it across the strait. They could clearly see that there was more landanother continent!only thirteen kilometers away. A strong swimmer can make it, and with any sort of raft or boat, it was eminently doable. But Neandertals never journeyed to the other side; as far as we can tell, they never even tried.

And you dreamt?

I dreamt I was part of a Neandertal community there, a teenage girl, I guess. And I was trying to convince the others that we should go across the strait, go see the new land. But I couldnt; they werent interested. There was plenty of food and shelter where we were. Finally, I headed out on my own, trying to swim it. The water was cold and the waves were high, and half the time I couldnt get any air to breathe, but I swam and I swam, and then...

Yes?

She shrugged a little. And then I woke up.

I smiled at her. Well, this time were going to make it. Were going to make it for sure.

We came to the bridge door, which opened automatically to admit us, although it squeaked something fierce while doing so; its lubricants must have dried up over the last twelve centuries. The room was rectangular with a double row of angled consoles facing a large screen, which currently was off.

Distance to Soror? I asked into the air.

The computers voice replied. 1.2 million kilometers.

I nodded. About three times the distance between Earth and its moon. Screen on, view ahead.

Overrides are in place, said the computer.

Ling smiled at me. Youre jumping the gun, partner.

I was embarrassed. The Pioneer Spirit was decelerating toward Soror; the ships fusion exhaust was facing in the direction of travel. The optical scanners would be burned out by the glare if their shutters were opened. Computer, turn off the fusion motors.

Powering down, said the artificial voice.

Visual as soon as youre able, I said.

The gravity bled away as the ships engines stopped firing. Ling held on to one of the handles attached to the top of the console nearest her; I was still a little groggy from the suspended animation, and just floated freely in the room. After about two minutes, the screen came on. Tau Ceti was in the exact center, a baseball-sized yellow disk. And the four planets were clearly visible, ranging from pea-sized to as big as grape.

Magnify on Soror, I said.

One of the peas became a billiard ball, although Tau Ceti grew hardly at all.

More, said Ling.

The planet grew to softball size. It was showing as a wide crescent, perhaps a third of the disk illuminated from this angle. Andthankfully, fantasticallySoror was everything wed dreamed it would be: a giant polished marble, with swirls of white cloud, and a vast, blue ocean, and

Part of a continent was visible, emerging out of the darkness. And it was green, apparently covered with vegetation.

We hugged again, squeezing each other tightly. No one had been sure when wed left Earth; Soror could have been barren. The Pioneer Spirit was ready regardless: in its cargo holds was everything we needed to survive even on an airless world. But wed hoped and prayed that Soror would be, welljust like this: a true sister, another Earth, another home.

Its beautiful, isnt it? said Ling.

I felt my eyes tearing. It was beautiful, breathtaking, stunning. The vast ocean, the cottony clouds, the verdant land, and

Oh, my God, I said, softly. Oh, my God.

What? said Ling.

Dont you see? I asked. Look!

Ling narrowed her eyes and moved closer to the screen. What?

On the dark side, I said.

She looked again. Oh... she said. There were faint lights sprinkled across the darkness; hard to see, but definitely there. Could it be volcanism? asked Ling. Maybe Soror wasnt so perfect after all.

Computer, I said, spectral analysis of the light sources on the planets dark side.

Predominantly incandescent lighting, color temperature 5600 kelvin.

I exhaled and looked at Ling. They werent volcanoes. They were cities.

Soror, the world wed spent twelve centuries traveling to, the world wed intended to colonize, the world that had been dead silent when examined by radio telescopes, was already inhabited.


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