The Robert Silverberg Science Fiction Megapack(r)

by Robert Silverberg

  The people of the world of the tunnels, forty light-years distant, must have known nothing of the great explosion for a full generation after it had happened. But, all that while, the light of that shattered star was traveling towards them at a speed of 300,000 kilometers per second, and one night its frightful baleful unexpected glare must have burst suddenly into their sky in the most terrifying way. And almost in that same moment—for the deadly cosmic rays thrown off by the explosion move nearly at the speed of light—the killing blast of hard radiation would have arrived. And so these people and all else that lived on their world perished in terror and light.

  All this took place a thousand light-years from Earth: that surging burst of radiation will need another six centuries to complete its journey towards our home world. At that distance, the cosmic rays will do us little or no harm. But for a time that long-dead star will shine in our skies so brilliantly that it will be visible by day, and by night it will cast deep shadows, longer than those of the Moon.

  That’s still in Earth’s future. Here the fatal supernova, and the second one that must have happened not long afterwards, were some four hundred years in the past. What we had here now was a neutron star left over from one cataclysm and a black hole left over from the other. Plus the pathetic remains of a great civilization on a scorched planet orbiting a neighboring star. And now a ship from some alien culture. A busy corner of the galaxy, this one. A busy time for the crew of the IBM/Toshiba hyperspace ship Ben-wah Maru.

  * * * *

  I was still going over the reports that had piled up at my station during my sleep period—mass-and-output readings on the neutron star, progress bulletins on the setup procedures for the neutronium scoop, and other routine stuff of that nature—when the communicator cone in front of me started to glow. I flipped it on. Cal Bjornsen, our communications guru, was calling from Brain Central downstairs.

  Bjornsen is mostly black African with some Viking genes salted in. The whole left side of his face is cyborg, the result of some extreme bit of teenage carelessness. The story is that he was gravity-vaulting and lost polarity at sixty meters. The mix of ebony skin, blue eyes, blond hair, and sculpted titanium is an odd one, but I’ve seen a lot of faces less friendly than Cal’s. He’s a good man with anything electronic.

  He said, “I think they’re finally trying to send us messages, Tom.”

  I sat up fast. “What’s that?”

  “We’ve been pulling in signals of some sort for the past ninety minutes that didn’t look random, but we weren’t sure about it. A dozen or so different frequencies all up and down the line, mostly in the radio band, but we’re also getting what seem to be infra-red pulses, and something flashing in the ultraviolet range. A kind of scattershot noise effect, only it isn’t noise.”

  “Are you sure of that?”

  “The computer’s still chewing on it,” Bjornsen said. The fingers of his right hand glided nervously up and down his smooth metal cheek. “But we can see already that there are clumps of repetitive patterns.”

  “Coming from them? How do you know?”

  “We didn’t, at first. But the transmissions conked out when we lost line-of-sight with them, and started up again when they came back into view.”

  “I’ll be right down,” I said.

  Bjornsen is normally a calm man, but he was running in frantic circles when I reached Brain Central three or four minutes later. There was stuff dancing on all the walls: sine waves, mainly, but plenty of other patterns jumping around on the monitors. He had already pulled in specialists from practically every department—the whole astronomy staff, two of the math guys, a couple from the external maintenance team, and somebody from engines. I felt preempted. Who was CEO on this ship, anyway? They were all babbling at once. “Fourier series,” someone said, and someone yelled back, “Dirichlet factor,” and someone else said, “Gibbs phenomenon!” I heard Angie Seraphin insisting vehemently, “—continuous except possibly for a finite number of finite discontinuities in the interval—pi to pi—”

  “Hold it,” I said, “What’s going on?”

  More babble, more gibberish. I got them quiet again and repeated my question, aiming it this time at Bjornsen.

  “We have the analysis now,” he said.

  “So?”

  “You understand that it’s only guesswork, but Brain Central gives good guess. The way it looks, they seem to want us to broadcast a carrier wave they can tune in on, and just talk to them while they lock in with some sort of word-to-word translating device of theirs.”

  “That’s what Brain Central thinks they’re saying?”

  “It’s the most plausible semantic content of the patterns they’re transmitting,” Bjornsen answered.

  I felt a chill. The aliens had word-to-word translating devices? That was a lot more than we could claim. Brain Central is one very smart computer, and if it thought that it had correctly deciphered the message coming in, them in all likelihood it had. An astonishing accomplishment, taking a bunch of ones and zeros put together by an alien mind and culling some sense out of them.

  But even Brain Central wasn’t capable of word-to-word translation out of some unknown language. Nothing in our technology is. The alien message had been designed to be easy: put together, most likely, in a careful high-redundancy manner, the computer equivalent of picture-writing. Any race able to undertake interstellar travel ought to have a computer powerful enough to sweat the essential meaning out of a message like that, and we did. We couldn’t go farther than that though. Let the entropy of that message—that is, the unexpectedness of it, the unpredictability of its semantic content—rise just a little beyond the picture-writing level, and Brain Central would be lost. A computer that knows French should be able to puzzle out Spanish, and maybe even Greek. But Chinese? A tough proposition. And an alien language? Languages may start out logical, but they don’t stay that way. And when its underlying grammatical assumptions were put together in the first place by beings with nervous systems that were wired up in ways entirely different from our own, well, the notion of instantaneous decoding becomes hopeless.

  Yet our computer said that their computer could do word-to-word. That was scary.

  On the other hand, if we couldn’t talk to them, we wouldn’t begin to find out what they were doing here and what threat, if any, they might pose to us. By revealing our language to them we might be handing them some sort of advantage, but I couldn’t be sure of that, and it seemed to me we had to take the risk.

  It struck me as a good idea to get some backing for that decision, though. After a dozen years as CEO aboard various corporate ships I knew the protocols. You did what you thought was right, but you didn’t go all the way out on the limb by yourself if you could help it.

  “Request a call for a meeting of the corporate staff,” I told Bjornsen.

  It wasn’t so much a scientific matter now as a political one. The scientists would probably be gung-ho to go blasting straight ahead with making contact. But I wanted to hear what the Toshiba people would say, and the IBM people, and the military people. So we got everyone together and I laid the situation out and asked for a Consensus Process. And let them go at it, hammer and tongs.

  Instant polarization. The Toshiba people were scared silly of the aliens. We must be cautious, Nakamura said. Caution, yes, said her cohort Nagy-Szabo. There may be danger to Earth. We have no knowledge of the aims and motivations of these beings. Avoid all contact with them, Nagy-Szabo said. Nakamura went even further. We should withdraw from the area immediately, she said, and return to Earth for additional instructions. That drew hot opposition from Jorgensen and Kalliotis, the IBM people. We had work to do here, they said. We should do it. They grudgingly conceded the need to be wary, but strongly urged continuation of the mission and advocated a circumspect opening of contact with the other ship. I think they were
already starting to think about alien marketing demographics. Maybe I do them an injustice. Maybe.

  The military people were about evenly divided between the two factions. A couple of them, the hair-splitting career-minded ones, wanted to play it absolutely safe and clear out of here fast, and the others, the up-and-away hero types, spoke out in favor of forging ahead with contact and to hell with the risks.

  I could see there wasn’t going to be any consensus. It was going to come down to me to decide.

  By nature I am cautious. I might have voted with Nakamura in favor of immediate withdrawal; however that would have made my ancient cold-eyed Sioux forebears howl. Yet in the end what swayed me was an argument that came from Bryce-Williamson, one of the fiercest of the military sorts. He said that we didn’t dare turn tail and run for home without making contact, because the aliens would take that either as a hostile act or a stupid one, and either way they might just slap some kind of tracer on us that ultimately would enable them to discover the location of our home world. True caution, he said, required us to try to find out what these people were all about before we made any move to leave the scene. We couldn’t just run and we couldn’t simply ignore them.

  I sat quietly for a long time, weighing everything.

  “Well?” Bjornsen asked. “What do you want to do, Tom?”

  “Send them a broadcast,” I said. “Give them greetings in the name of Earth and all its peoples. Extend to them the benevolent warm wishes of the board of directors of IBM/Toshiba. And then we’ll wait and see.”

  * * * *

  We waited. But for a long while we didn’t see.

  Two days, and then some. We went round and round the neutron star, and they went round and round the neutron star, and no further communication came from them. We beamed them all sorts of messages at all sorts of frequencies along the spectrum, both in the radio band and via infra-red and ultraviolet as well, so that they’d have plenty of material to work with. Perhaps their translator gadget wasn’t all that good, I told myself hopefully. Perhaps it was stripping its gears trying to fathom the pleasant little packets of semantic data that we had sent them.

  On the third day of silence I began feeling restless. There was no way we could begin the work we had been sent here to do, not with aliens watching. The Toshiba people—the Ultra Cautious faction—got more and more nervous. Even the IBM representatives began to act a little twitchy. I started to question the wisdom of having overruled the advocates of a no-contact policy. Although the parent companies hadn’t seriously expected us to run into aliens, they had covered that eventuality in our instructions, and we were under orders to do minimum tipping of our hands if we found ourselves observed by strangers. But it was too late to call back our messages and I was still eager to find out what would happen next. So we watched and waited, and then we waited and watched. Round and round the neutron star.

  We had been parked in orbit for ten days now around the neutron star, an orbit calculated to bring us no closer to its surface than 9000 kilometers at the closest skim. That was close enough for us to carry out our work, but not so close that we would be subjected to troublesome and dangerous tidal effects.

  The neutron star had been formed in the supernova explosion that had destroyed the smaller of the two suns in what had once been a binary star system here. At the moment of the cataclysmic collapse of the stellar sphere, all its matter had come rushing inward with such force that electrons and protons were driven into each other to become a soup of pure neutrons. Which then were squeezed so tightly that they were forced virtually into contact with one another, creating a smooth globe of the strange stuff that we call neutronium, a billion billion times denser than steel and a hundred billion billion times more incompressible.

  That tiny ball of neutronium glowing dimly in our screens was the neutron star. It was just eighteen kilometers in diameter but its mass was greater than that of Earth’s sun. That gave it a gravitational field a quarter of a billion billion times as strong as that of the surface of Earth. If we could somehow set foot on it, we wouldn’t just be squashed flat, we’d be instantly reduced to fine powder by the colossal tidal effects—the difference in gravitational pull between the soles of our feet and the tops of our heads, stretching us towards and away from the neutron star’s center with a kick of eighteen billion kilograms.

  A ghostly halo of electromagnetic energy surrounded the neutron star: X-rays, radio waves, gammas, and an oily, crackling flicker of violet light. The neutron star was rotating on its axis some 550 times a second, and powerful jets of electrons were spouting from its magnetic poles at each sweep, sending forth a beacon-like pulsar broadcast of the familiar type that we have been able to detect since the middle of the twentieth century.

  Behind that zone of fiercely outflung radiation lay the neutron star’s atmosphere: an envelope of gaseous iron a few centimeters thick. Below that, our scan had told us, was a two-kilometers-thick crust of normal matter, heavy elements only, ranging from molybdenum on up to transuranics with atomic numbers as high as 140. And within that was the neutronium zone, the stripped nuclei of iron packed unimaginably close together, an ocean of strangeness nine kilometers deep. What lay at the heart of that, we could only guess.

  We had come here to plunge a probe into the neutronium zone and carry off a spoonful of star-stuff that weighed 100 billion tons per cubic centimeter.

  No sort of conventional landing on the neutron star was possible or even conceivable. Not only was the gravitational pull beyond our comprehension—anything that was capable of withstanding the tidal effects would still have to cope with an escape velocity requirement of 200,000 kilometers per second when it tried to take off, two thirds the speed of light—but the neutron star’s surface temperature was something like 3.5 million degrees. The surface temperature of our own sun is six thousand degrees and we don’t try to make landings there. Even at this distance, our heat and radiation shields were straining to the limits to keep us from being cooked. We didn’t intend to go any closer.

  What IBM/Toshiba wanted us to do was to put a miniature hyperspace ship into orbit around the neutron star: an astonishing little vessel no bigger than your clenched fist, powered by a fantastically scaled-down version of the drive that had carried us through the space-time manifold across a span of a thousand light-years in a dozen weeks. The little ship was a slave-drone; we would operate it from the Ben-wah Maru. Or, rather, Brain Central would. In a maneuver that had taken fifty computer-years to program, we would send the miniature into hyperspace and bring it out again right inside the neutron star. And keep it there a billionth of a second, long enough for it to gulp the spoonful of neutronium we had been sent here to collect. Then we’d head for home, with the miniature ship following us along the same hyperpath.

  We’d head for home, that is, unless the slave-drone’s brief intrusion into the neutron star released disruptive forces that splattered us all over this end of the galaxy. IBM/Toshiba didn’t really think that was going to happen. In theory a neutron star is one of the most stable things there is in the universe, and the math didn’t indicate that taking a nip from its interior would cause real problems. This neighborhood had already had its full quota of giant explosions, anyway.

  Still, the possibility existed. Especially since there was a black hole just thirty light-minutes away, a souvenir of the second and much larger supernova bang that had happened here in the recent past. Having a black hole nearby is a little like playing with an extra wild card whose existence isn’t made known to the players until some randomly chosen moment midway through the game. If we destabilized the neutron star in some way not anticipated by the scientists back on Earth, we might just find ourselves going for a visit to the event horizon instead of getting to go home. Or we might not. There was only one way of finding out.

  I didn’t know, by the way, what use the parent companies planned to ma
ke of the neutronium we had been hired to bring them. I hoped it was a good one.

  But obviously we weren’t going to tackle any of this while there was an alien ship in the vicinity. So all we could do was wait. And see. Right now we were doing a lot of waiting, and no seeing at all.

  * * * *

  Two days later Cal Bjornsen said, “We’re getting a message back from them now. Audio only. In English.”

  We had wanted that, we had even hoped for that. And yet it shook me to learn that it was happening.

  “Let’s hear it,” I said.

  “The relay’s coming over ship channel seven.”

  I tuned in. What I heard was an obviously synthetic voice, no undertones or overtones, not much inflection. They were trying to mimic the speech rhythms of what we had sent them, and I suppose they were actually doing a fair job of it, but the result was still unmistakably mechanical-sounding. Of course there might be nothing on board that ship but a computer, I thought, or maybe robots. I wish now that they had been robots.

  It had the absolute and utter familiarity of a recurring dream. In stiff, halting, but weirdly comprehensible English came the first greetings of an alien race to the people of the planet of Earth. “This who speak be First of Nine Sparg,” the voice said. Nine Sparg, we soon realized from context, was the name of their planet. First might have been the speaker’s name, or his—hers, its?—title; that was unclear, and stayed that way. In an awkward pidgin-English that we nevertheless had little trouble understanding, First expressed gratitude for our transmission and asked us to send more words. To send a dictionary, in fact: now that they had the algorithm for our speech they needed more content to jam in behind it, so that we could go on to exchange more complex statements than Hello and How are you.

  Bjornsen queried me on the override. “We’ve got an English program that we could start feeding them,” he said. “Thirty thousand words: that should give them plenty. You want me to put it on for them?”