The Year’s Best Science Fiction: Tenth Annual Collection

by Gardner Dozois

  “No,” says the Warder.

  “We aren’t required to reveal what we’ve found to anybody. My job is simply to keep the temple building from falling down. Yours is to perform the rituals of the faith.”

  “And if the faith is a false one, Mericalis?”

  “We don’t know that it is.”

  “We have our suspicions, don’t we?”

  “To say that the Three never returned safely to the stars is heresy, isn’t it, Diriente? Do you want to be responsible for spreading heresy?”

  “My responsibility is to promote the truth,” says the Warder. “It always has been.”

  “Poor Diriente. What have I done to you?”

  “Don’t waste your pity on me, Mericalis. I don’t need it. Just help me find my way out of here, all right? All right?”

  “Yes,” the custodian says. “Whatever you say.”

  The passageway is much shorter and less intricate on the way out than it seemed to be when they entered. Neither of them speaks a word as they traverse it. Mericalis trudges quickly forward, never once looking back. The Warder, following briskly along behind, moves with a vigor he hasn’t felt in years. His mind is hard at work: he occupies himself with what he will say later in the day, first to the temple staff, then to the worshipers who come that day, and then, perhaps, to the emperor and all his court, down in the great city below the mountain. His words will fall upon their ears like the crack of thunder at the mountaintop; and then let whatever happen that may. Brothers and Sisters, I announce unto you a great joy, is how he intends to begin. The Second Advent is upon us. For behold, I can show you the Three themselves. They are with us now, nor have they ever left us—

  THE HAMMER OF GOD

  Arthur C. Clarke

  Arthur C. Clarke is perhaps the most famous modern science fiction writer in the world, seriously rivaled for that title only by the late Isaac Asimov and Robert A. Heinlein. Clarke is probably most widely known for his work on Stanley Kubrick’s film 2001: A Space Odyssey, but he is also renowned as a novelist, short-story writer, and as a writer of nonfiction, usually on technological subjects such as spaceflight. He has won three Nebula Awards, three Hugo Awards, the British Science Fiction Award, the John W. Campbell Memorial Award, and a Grandmaster Nebula for Life Achievement. His best-known books include the novels Childhood’s End, The City and the Stars, The Deep Range, Rendezvous with Rama, A Fall of Moondust, 2001. A Space Odyssey, 2010: Odyssey Two, 2061: Odyssey Three, The Songs of Distant Earth, and The Fountains of Paradise, and the collections The Nine Billion Names of God, Tales of Ten Worlds, and The Sentinel. He has also written many nonfiction books on scientific topics, the best known of which are probably Profiles of the Future and The Wind from the Sun. Clarke is generally considered to be the man who first came up with the idea of the communications satellite. His most recent works are the novel The Garden of Rama (written with Gentry Lee) and the nonfiction book How the World Was One. Upcoming is a novel version of this story, The Hammer of God. Born in Somerset, England, Clarke now lives in Sri Lanka.

  The incisive and elegant story that follows was first published in Time magazine, which, to my knowledge, is the only science fiction story and only the second work of fiction of any sort ever published by Time, an indication of Clarke’s stature. It covers some ground that will be familiar to long-time Clarke readers, but it handles its themes with classical purity and grace. With marvelous economy and precision, it manages to pack enough content into a very short story to last many an author for an entire four-hundred-page novel. Its quietness is deceptive too, for in Clarke’s typically cool, calm, understated fashion, it ultimately delivers quite an emotional punch—as well as carrying a message vital for the survival of the human race, and perhaps of all life on Earth.

  It came in vertically, punching a hole 10 km wide through the atmosphere, generating temperatures so high that the air itself started to burn. When it hit the ground near the Gulf of Mexico, rock turned to liquid and spread outward in mountainous waves, not freezing until it had formed a crater 200 km across.

  That was only the beginning of disaster: now the real tragedy began. Nitric oxides rained from the air, turning the sea to acid. Clouds of soot from incinerated forests darkened the sky, hiding the sun for months. Worldwide, the temperature dropped precipitously, killing off most of the plants and animals that had survived the initial cataclysm. Though some species would linger on for millenniums, the reign of the great reptiles was finally over.

  The clock of evolution had been reset; the countdown to Man had begun. The date was, very approximately, 65 million B.C.

  * * *

  Captain Robert Singh never tired of walking in the forest with his little son Toby. It was, of course, a tamed and gentle forest, guaranteed to be free of dangerous animals, but it made an exciting contrast to the rolling sand dunes of their last environment in the Saudi desert—and the one before that, on Australia’s Great Barrier Reef. But when the Skylift Service had moved the house this time, something had gone wrong with the food-recycling system. Though the electronic menus had fail-safe backups, there had been a curious metallic taste to some of the items coming out of the synthesizer recently.

  “What’s that, Daddy?” asked the four-year-old, pointing to a small hairy face peering at them through a screen of leaves.

  “Er, some kind of monkey. We’ll ask the Brain when we get home.”

  “Can I play with it?”

  “I don’t think that’s a good idea. It could bite. And it probably has fleas. Your robotoys are much nicer.”

  “But…”

  Captain Singh knew what would happen next: he had run this sequence a dozen times. Toby would begin to cry, the monkey would disappear, he would comfort the child as he carried him back to the house …

  But that had been twenty years ago and a quarter-billion kilometers away. The playback came to an end; sound, vision, the scent of unknown flowers and the gentle touch of the wind slowly faded. Suddenly, he was back in this cabin aboard the orbital tug Goliath, commanding the 100-person team of Operation ATLAS, the most critical mission in the history of space exploration. Toby, and the stepmothers and stepfathers of his extended family, remained behind on a distant world which Singh could never revisit. Decades in space—and neglect of the mandatory zero-G exercises—had so weakened him that he could now walk only on the Moon and Mars. Gravity had exiled him from the planet of his birth.

  “One hour to rendezvous, captain,” said the quiet but insistent voice of David, as Goliath’s central computer had been inevitably named. “Active mode, as requested. Time to come back to the real world.”

  Goliath’s human commander felt a wave of sadness sweep over him as the final image from his lost past dissolved into a featureless, simmering mist of white noise. Too swift a transition from one reality to another was a good recipe for schizophrenia, and Captain Singh always eased the shock with the most soothing sound he knew: waves falling gently on a beach, with sea gulls crying in the distance. It was yet another memory of a life he had lost, and of a peaceful past that had now been replaced by a fearful present.

  For a few more moments, he delayed facing his awesome responsibility. Then he sighed and removed the neural-input cap that fitted snugly over his skull and had enabled him to call up his distant past. Like all spacers, Captain Singh belonged to the “Bald Is Beautiful” school, if only because wigs were a nuisance in zero gravity. The social historians were still staggered by the fact that one invention, the portable “Brainman,” could make bare heads the norm within a single decade. Not even quick-change skin coloring, or the lens-corrective laser shaping which had abolished eyeglasses, had made such an impact upon style and fashion.

  “Captain,” said David. “I know you’re there. Or do you want me to take over?”

  It was an old joke, inspired by all the insane computers in the fiction and movies of the early electronic age. David had a surprisingly good sense of humor: he was, after all, a Legal Person
(Nonhuman) under the famous Hundredth Amendment, and shared—or surpassed—almost all the attributes of his creators. But there were whole sensory and emotional areas which he could not enter. It had been felt unnecessary to equip him with smell or taste, though it would have been easy to do so. And all his attempts at telling dirty stories were such disastrous failures that he had abandoned the genre.

  “All right, David,” replied the captain. “I’m still in charge.” He removed the mask from his eyes, and turned reluctantly toward the viewport. There, hanging in space before him, was Kali.

  It looked harmless enough: just another small asteroid, shaped so exactly like a peanut that the resemblance was almost comical. A few large impact craters, and hundreds of tiny ones, were scattered at random over its charcoal-gray surface. There were no visual clues to give any sense of scale, but Singh knew its dimensions by heart: 1,295 m maximum length, 456 m minimum width. Kali would fit easily into many city parks.

  No wonder that, even now, most of humankind could still not believe that this modest asteroid was the instrument of doom. Or, as the Chrislamic Fundamentalists were calling it, “the Hammer of God.”

  * * *

  The sudden rise of Chrislam had been traumatic equally to Rome and Mecca. Christianity was already reeling from John Paul XXV’s eloquent but belated plea for contraception and the irrefutable proof in the New Dead Sea Scrolls that the Jesus of the Gospels was a composite of at least three persons. Meanwhile the Muslim world had lost much of its economic power when the Cold Fusion breakthrough, after the fiasco of its premature announcement, had brought the Oil Age to a sudden end. The time had been ripe for a new religion embodying, as even its severest critics admitted, the best elements of two ancient ones.

  The Prophet Fatima Magdalene (nee Ruby Goldenburg) had attracted almost 100 million adherents before her spectacular—and, some maintained, self-contrived—martyrdom. Thanks to the brilliant use of neural programming to give previews of Paradise during its ceremonies, Chrislam had grown explosively, though it was still far outnumbered by its parent religions.

  Inevitably, after the Prophet’s death the movement split into rival factions, each upholding the True Faith. The most fanatical was a fundamentalist group calling itself “the Reborn,” which claimed to be in direct contact with God (or at least Her Archangels) via the listening post they had established in the silent zone on the far side of the Moon, shielded from the radio racket of Earth by 3,000 km of solid rock.

  * * *

  Now Kali filled the main viewscreen. No magnification was needed, for Goliath was hovering only 200 m above its ancient, battered surface. Two crew members had already landed, with the traditional “One small step for a man”—even though walking was impossible on this almost zero-gravity worldlet.

  “Deploying radio beacon. We’ve got it anchored securely. Now Kali won’t be able to hide from us.”

  It was a feeble joke, not meriting the laughter it aroused from the dozen officers on the bridge. Ever since rendezvous, there had been a subtle change in the crew’s morale, with unpredictable swings between gloom and juvenile humor. The ship’s physician had already prescribed tranquilizers for one mild case of manic-depressive symptoms. It would grow worse in the long weeks ahead, when there would be little to do but wait.

  The first waiting period had already begun. Back on Earth, giant radio telescopes were tuned to receive the pulses from the beacon. Although Kali’s orbit had already been calculated with the greatest possible accuracy, there was still a slim chance that the asteroid might pass harmlessly by. The radio measuring rod would settle the matter, for better or worse.

  It was a long two hours before the verdict came, and David relayed it to the crew.

  “Spaceguard reports that the probability of impact on Earth is 99.9%. Operation ATLAS will begin immediately.”

  The task of the mythological Atlas was to hold up the heavens and prevent them from crashing down upon Earth. The ATLAS booster that Goliath carried as an external payload had a more modest goal: keeping at bay only a small piece of the sky.

  * * *

  It was the size of a small house, weighed 9,000 tons and was moving at 50,000 km/h. As it passed over the Grand Teton National Park, one alert tourist photographed the incandescent fireball and its long vapor trail. In less than two minutes, it had sliced through the Earth’s atmosphere and returned to space.

  The slightest change of orbit during the billions of years it had been circling the sun might have sent the asteroid crashing upon any of the world’s great cities with an explosive force five times that of the bomb that destroyed Hiroshima.

  The date was Aug. 10, 1972.

  * * *

  Spaceguard had been one of the last projects of the legendary NASA, at the close of the 20th century. Its initial objective had been modest enough: to make as complete a survey as possible of the asteroids and comets that crossed the orbit of Earth—and to determine if any were a potential threat.

  With a total budget seldom exceeding $10 million a year, a worldwide network of telescopes, most of them operated by skilled amateurs, had been established by the year 2000. Sixty-one years later, the spectacular return of Halley’s Comet encouraged more funding, and the great 2079 fireball, luckily impacting in mid-Atlantic, gave Spaceguard additional prestige. By the end of the century, it had located more than 1 million asteroids, and the survey was believed to be 90% complete. However, it would have to be continued indefinitely: there was always a chance that some intruder might come rushing in from the uncharted outer reaches of the solar system.

  As had Kali, which had been detected in late 2212 as it fell sunward past the orbit of Jupiter. Fortunately humankind had not been wholly unprepared, thanks to the fact that Senator George Ledstone (Independent, West America) had chaired an influential finance committee almost a generation earlier.

  The Senator had one public eccentricity and, he cheerfully admitted, one secret vice. He always wore massive horn-rimmed eyeglasses (nonfunctional, of course) because they had an intimidating effect on uncooperative witnesses, few of whom had ever encountered such a novelty. His “secret vice,” perfectly well known to everyone, was rifle shooting on a standard Olympic range, set up in the tunnels of a long-abandoned missile silo near Mount Cheyenne. Ever since the demilitarization of Planet Earth (much accelerated by the famous slogan “Guns Are the Crutches of the Impotent”), such activities had been frowned upon, though not actively discouraged.

  There was no doubt that Senator Ledstone was an original; it seemed to run in the family. His grandmother had been a colonel in the dreaded Beverly Hills Militia, whose skirmishes with the L.A. Irregulars had spawned endless psychodramas in every medium, from old-fashioned ballet to direct brain stimulation. And his grandfather had been one of the most notorious bootleggers of the 21st century. Before he was killed in a shoot-out with the Canadian Medicops during an ingenious attempt to smuggle a kiloton of tobacco up Niagara Falls, it was estimated that “Smokey” had been responsible for at least 20 million deaths.

  Ledstone was quite unrepentant about his grandfather, whose sensational demise had triggered the repeal of the late U.S.’s third, and most disastrous, attempt at Prohibition. He argued that responsible adults should be allowed to commit suicide in any way they pleased—by alcohol, cocaine or even tobacco—as long as they did not kill innocent bystanders during the process.

  When the proposed budget for Spaceguard Phase 2 was first presented to him, Senator Ledstone had been outraged by the idea of throwing billions of dollars into space. It was true that the global economy was in good shape; since the almost simultaneous collapse of communism and capitalism, the skillful application of chaos theory by World Bank mathematicians had broken the old cycle of booms and busts and averted (so far) the Final Depression predicted by many pessimists. Nonetheless, the Senator argued that the money could be much better spent on Earth—especially on his favorite project, reconstructing what was left of California after the Superquake.<
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  When Ledstone had twice vetoed Spaceguard Phase 2, everyone agreed that no one on Earth would make him change his mind. They had reckoned without someone from Mars.

  The Red Planet was no longer quite so red, though the process of greening it had barely begun. Concentrating on the problems of survival, the colonists (they hated the word and were already saying proudly “we Martians”) had little energy left over for art or science. But the lightning flash of genius strikes where it will, and the greatest theoretical physicist of the century was born under the bubble domes of Port Lowell.

  Like Einstein, to whom he was often compared, Carlos Mendoza was an excellent musician; he owned the only saxophone on Mars and was a skilled performer on that antique instrument. He could have received his Nobel Prize on Mars, as everyone expected, but he loved surprises and practical jokes. Thus he appeared in Stockholm looking like a knight in high-tech armor, wearing one of the powered exoskeletons developed for paraplegics. With this mechanical assistance, he could function almost unhandicapped in an environment that would otherwise have quickly killed him.

  Needless to say, when the ceremony was over, Carlos was bombarded with invitations to scientific and social functions. Among the few he was able to accept was an appearance before the World Budget Committee, where Senator Ledstone closely questioned him about his opinion of Project Spaceguard.

  “I live on a world which still bears the scars of a thousand meteor impacts, some of them hundreds of kilometers across,” said Professor Mendoza. “Once they were equally common on Earth, but wind and rain—something we don’t have yet on Mars, though we’re working on it!—have worn them away.”

  Senator Ledstone: “The Spaceguarders are always pointing to signs of asteroid impacts on Earth. How seriously should we take their warnings?”

  Professor Mendoza: “Very seriously, Mr. Chairman. Sooner or later, there’s bound to be another major impact.”

  Senator Ledstone was impressed, and indeed charmed, by the young scientist, but not yet convinced. What changed his mind was not a matter of logic but of emotion. On his way to London, Carlos Mendoza was killed in a bizarre accident when the control system of his exoskeleton malfunctioned. Deeply moved, Ledstone immediately dropped his opposition to Spaceguard, approving construction of two powerful orbiting tugs, Goliath and Titan, to be kept permanently patrolling on opposite sides of the sun. And when he was a very old man, he said to one of his aides, “They tell me we’ll soon be able to take Mendoza’s brain out of that tank of liquid nitrogen, and talk to it through a computer interface. I wonder what he’s been thinking about, all these years…”