Page 6 of Earth


  “Some astronomers claim to see signs of gigantic cosmic strings in deep space. Perhaps strings even triggered the formation of galaxies, long ago. If so, the giant ones survived because their loops cross only every few billion years. Smaller, quicker strings cut themselves to bits …”

  As he spoke, both little loops made lopsided figure eights and broke into four tinier ones, vibrating madly. Each of these soon divided again. And so on. As they multiplied, their size diminished and brightness grew—bound for annihilation.

  “So,” George surmised. “Small ones still aren’t dangerous.”

  Alex nodded. “A simple, chaotic string like this couldn’t explain the power curves at Iquitos. So I went back to the original cavitron equations, fiddled around with Jones-Witten theory a bit, and came up with something new.

  “This is what I thought I’d made, just before Pedro Manella set off his damned riot.”

  The tiny loops had disappeared in a blare of brilliance. Alex uttered a brief command, and a new object appeared. “I call this a tuned string.”

  Again, a lambent loop pulsed in space, surrounded by white sparks of particle creation. Only this time the string didn’t twist and gyre chaotically. Regular patterns rippled round its rim. Each time an indentation seemed about to touch another portion, the rhythm yanked it back again. The loop hung on, safe from self-destruction. Meanwhile, matter continued flowing in from all sides.

  Visibly, it grew.

  “Your monster. I remember from when you first arrived. I may be drunk, Lustig, but not so I’d forget this terrible taniwha.”

  Watching the undulations, Alex felt the same mixed rapture and loathing as when he’d first realized such things were possible … when he first suspected he had made something this biblically terrible, and beautiful.

  “It creates its own self-repulsion,” he said softly, “exploiting second- and third-order gravities. We should have suspected, since cosmic strings are superconducting—”

  George Hutton interrupted, slapping a meaty hand onto Alex’s shoulder. “That’s fine. But today we proved you didn’t make such a thing. We sent waves into the Earth, and echoes show the thing’s dissipating. It’s dying. Your string was out of tune!”

  Alex said nothing. George looked at him. “I don’t like your silence. Reassure me again. The damned thing is for sure dying, right?”

  Alex spread his hands. “Bloody hell, George. After all my mistakes, I’d only trust experimental evidence, and you saw the results today.” He gestured toward the mighty thumper. “It’s your equipment. You tell me.”

  “It’s dying.” George said, flat out. Confident.

  “Yes, it’s dying. Thank heaven.”

  For another minute the two men sat silently.

  “Then what’s your problem?” Hutton finally asked. “What’s eating you?”

  Alex frowned. He thumbed a control, and once again a cutaway view of the Earth took shape. Again, the dot representing his Iquitos singularity traced lazy precessions among veins of superheated metal and viscous, molten rock.

  “It’s the damn thing’s orbit.” Equations filed by. Complex graphs loomed and receded.

  “What about its orbit?” George seemed transfixed, still holding the bottle in one hand, swaying slightly as the dot rose and fell, rose and fell.

  Alex shook his head. “I’ve allowed for every density variation on your seismic maps. I’ve accounted for every field source that could influence its trajectory. And still there’s this deviation.”

  “Deviation?” Alex sensed Hutton turn to look at him again.

  “Another influence is diverting it. I think I’ve got a rough idea of the mass involved.…”

  The bigger man swung Alex around bodily. The Maori’s right hand gripped his shoulder. All signs of intoxication were gone from Hutton’s face as he bent to meet Alex’s eyes.

  “What are you telling me? Explain!”

  “I think …” Alex couldn’t help it. As if drawn physically, he turned to look back at the image in the tank.

  “I think something else is down there.”

  In the ensuing silence, they could hear the drip-drip of mineral-rich water, somewhere deeper in the cave. The rhythm seemed much steadier than Alex’s heartbeat. George Hutton looked at the whiskey bottle. With a sigh, he put it down. “I’ll get my men.”

  As his footsteps receded, Alex felt the weight of the mountain around him once more, all alone.

  In ages past, men and women kept foretelling the end of the world. Calamity seemed never farther than the next earthquake or failed harvest. And each dire happening, from tempest to barbarian invasion, was explained as wrathful punishment from heaven.

  Eventually, humanity began accepting more of the credit, or blame, for impending Armageddon. Between the world wars, for instance, novelists prophesied annihilation by poison gas. Later it was assumed we’d blow ourselves to hell with nuclear weapons. Horrible new diseases and other biological scourges terrified populations during the Helvetian struggle. And of course, our burgeoning human population fostered countless dread specters of mass starvation.

  Apocalypses, apparently, are subject to fashion like everything else. What terrifies one generation can seem obsolete and trivial to the next. Take our modern attitude toward war. Most anthropologists now think this activity was based originally on theft and rape—perhaps rewarding enterprises for some caveman or Viking, but no longer either sexy or profitable in the context of nuclear holocaust! Today, we look back on large-scale warfare as an essentially silly enterprise.

  As for starvation, we surely have seen some appalling local episodes. Half the world’s cropland has been lost, and more is threatened. Still, the “great die-back” everyone talks about always seems to lie a decade or so in the future, perpetually deferred. Innovations like self-fertilizing rice and super-mantises help us scrape by each near-catastrophe just in the nick of time. Likewise, due to changing life-styles, few today can bear the thought of eating the flesh of a fellow mammal. Putting moral or health reasons aside, this shift in habits has freed millions of tons of grain, which once went into inefficient production of red meat.

  Has the Apocalypse vanished, then? Certainly not. It’s no longer the hoary Four Horsemen of our ancestors that threaten us, but new dangers, far worse in the long run. The by-products of human shortsightedness and greed.

  Other generations perceived a plethora of swords hanging over their heads. But generally what they feared were shadows, for neither they nor their gods could actually end the world. Fate might reap an individual, or a family, or even a whole nation, but not the entire world. Not then.

  We, in the mid-twenty-first century, are the first to look up at a sword we ourselves have forged, and know, with absolute certainty, it is real.…

  —From The Transparent Hand, Doubleday Books, edition 4.7 (2035). [ hyper access code 1-tTRAN-777-97-9945-29A.]

  • EXOSPHERE

  “All right, babe. The first elevator heading down will be crammed with cargo, but Glenn Spivey put in a word, so I should be able to hitch a ride on the next one. I may even be in Central before you.”

  Teresa shook her head, amazed. “Spivey arranged it? Are we talking about the same Colonel Spivey?”

  Her husband’s face beamed from the telecom screen. “Maybe you don’t know Glenn as I do. Underneath that beryllium exterior, there’s a heart of pure—”

  “—of pure titanium. Yeah, I know that one.” Teresa laughed, glad to share even a weak, tension-melting joke.

  So far, so good, she thought. Right now it felt great just looking at him, knowing he was a mere forty kilometers away, and soon would be much closer. Jason, too, sounded eager to give this a try.

  Someone had once told Teresa it was too bad about her husband’s smile, which sometimes transformed his intelligent features into those of an awkward puppy dog. But Teresa found his grin endearing. Jason might be insensitive at times—even a jerk—but she was sure he never lied to her. Some faces just wer
en’t built to carry off a lie.

  “By the way, I watched you snag that hook, first pass. Did you take over from the computer again? No machine pilots that smoothly.”

  Teresa knew she was blushing. “It looked like the program was stuttering, so I …”

  “Thought so! Now I’ll have to brag insufferably at mess. It’ll be your fault if I lose all my friends up here.”

  The capture maneuver was actually simpler than it looked. Pleiades now hung suspended below the space station, from a cable stretched taut by gravitational tides. When it was time to go, they’d simply release the hook and the shuttle would resume its original ellipse, returning to mother Earth having saved many tons of precious fuel.

  “Well, I reckon it’s cause I’m paht Texan,” she drawled, though she was the first in all her lineage ever to see the Lone Star State. “Ergo mah facility with the lasso.”

  “It also explains why her eyes are brown,” Mark Randall inserted from nearby.

  Jason’s image glanced toward Teresa’s copilot. “I don’t dare comment on that, so I’ll pretend I didn’t hear it.” Then, back to Teresa, “See you soon, Rip. I’ll reserve a room for us at the Hilton.”

  “I’ll settle for a broom closet,” she answered, and hang it if Randall took the wrong meaning. Some people just couldn’t imagine that a husband and wife, meeting for the first time in months, might want above all else to make contact, to talk quietly and preserve something neither of them wanted to lose.

  “I’ll see what I can arrange. Stempell out.”

  After securing the hook, their first task had been to offload tons of liquid hydrogen and oxygen. Likewise the extra orbital maneuvering propellants Teresa’s careful piloting had saved. Every kilo of raw material in orbit was valuable, and the station offloading crew went through the procedures with meticulous care.

  The holo display showed Pleiades suspended, nose upward, just below the bottom portion of the station—Nearpoint—the section closest to Earth. It was a maze of pipes and industrial gear hanging by slender, silvery threads many miles into the planet’s gravity well. Teresa watched nervously as three station operators in spacesuits finished draining the aft tanks. Only when the hoses were detached at last did she release a knot of tension. Explosive, corrosive liquids, flowing only meters from her heat shielding, always made her edgy.

  “Crew chief requests permission to commence cargo offloading,” Mark told Teresa.

  “Granted.”

  From the maze above, a giant, articulated manipulator arm approached Pleiades’ cargo bay. A spacesuited figure waved from the bay, guiding the arm gingerly toward the mysterious Air Force package.

  Colonel Glenn Spivey observed from the window overlooking the bay. “Easy does it. Come on, you bastards, it’s not made of rubber! If you ding it—”

  Fortunately, the crew outside couldn’t hear his backseat driving. And Teresa didn’t mind. After all, he was charged with equipment worth several hundred million dollars. Some anxious muttering at this point was understandable.

  So why do I detest the man so much? she wondered.

  For months Spivey had been working closely with her husband on some unspoken project. Perhaps it was her dislike of being excluded, or that nasty word “secrecy.” Or perhaps the resentment came simply from seeing the colonel take up so much of Jason’s attention, at a time when she was already jealous of others.

  “Others” … meaning that June Morgan woman, of course. Teresa allowed herself a brief remise of resentment. Just don’t let it cause an argument, she reminded herself. Not this time. Not up here.

  She turned away from Spivey and scanned the status boards again—attitude, tether strain, gravity gradient—all appeared nominal.

  In addition to the hook-snatch docking trick, tethered complexes like this one offered many other advantages over old-style “Tinkertoy” space stations. Long, metalized tethers could draw power directly from the Earth’s magnetic field, or let you torque against those fields to maneuver without fuel. Also, by yet another quirk of Kepler’s laws, both tips of the bola-like structure experienced faint artificial gravity—about a hundredth of a g—helpful for living quarters and handling liquids.

  Teresa appreciated anything that helped make space work. Still, she used remote instruments to examine the braided cables. Superstrong in tension, they were vulnerable to being worn away by microscopic space debris, even meteoroids. Statistical reassurances were less calming than simply checking for herself, so she scanned until she was sure the fibers weren’t on the verge of unraveling.

  Overhearing Spivey, clucking like a nervous hen as his cargo cleared the bay, Teresa smiled. I guess maybe we’re not that different in some ways.

  The Russians and Chinese had similar facilities in orbit, as did Nihon and the Euros. But the other dozen or so space-capable nations had abandoned their military outposts as costs rose and the skies came increasingly under civil control. Rumor had it Spivey’s folk were trying to cram in as much clandestine work as possible before “secrecy” became as outmoded up here as below.

  The crane operator loaded the Colonel’s cargo into an old shuttle tank—now the station freight elevator—and sent it climbing toward the weight-free complex, twenty klicks above.

  “Request permission to prepare the airlock for transit, Captain.” Spivey was already halfway down the companion-way to middeck, impatient to join his mysterious machine.

  “Mark will help just as soon as the tunnel is pressurized, Colonel.”

  One spacesuited astronaut examined the transparent transitway connecting Pleiades’ airlock to Nearpoint. He waved through the rear window, signing “all secure.”

  “I’ll see to Spivey,” Mark said, and started to unstrap.

  “Fine.” But Teresa found herself watching the spaceman outside. He had remained in the bay after finishing, and she was curious why.

  Climbing atop one of the tanks at the aft end, the station crewman secured his line to the uppermost insulated sphere … then went completely motionless, arms half outstretched before him in the limp, relaxed posture known as the “spacer’s crouch.”

  Teresa quashed her momentary concern. Of course. I get it.

  A little ahead of schedule for once, the fellow was seizing a chance that came all too rarely. He was watching the Earth roll by.

  The planet filled half the sky, stretching toward distant, hazy horizons. Directly below paraded a vastly bright panorama that never repeated itself, highlighted topographies that were ever-familiar and yet always startling. At the moment, their orbital track was approaching Spain from the west. Teresa knew because, as always, she had checked their location and heading only moments before. Sure enough, soon the nubby Rock of Gibraltar hove into view.

  Great pressure waves strained against the Pillars of Hercules, as they had ever since that day, tens of thousands of years ago, when the Atlantic Ocean had broken through the neck of land connecting Europe and Africa, pouring into the grassy basin that was to become the Mediterranean. Eventually, a new balance had been struck between sea and ocean, but ever since then it had remained an equilibrium of tension.

  Where the great waterfall once surged, now diurnal tides interacted in complex patterns of cancelation and reinforcement, focused and reflected by the funnel between Iberia and Morocco. From on high, standing waves seemed to thread the waters for hundreds of kilometers, yet those watery peaks and troughs were actually quite shallow and had been discovered only after cameras took to space.

  To Teresa, the patterns proved beautifully, once again, nature’s love affair with mathematics. And not only the sea displayed wave motion. She also liked looking down on towering stratocumulus and wind-shredded cirrus clouds. From space the atmosphere seemed so thin—too slender a film to rely all their lives upon. And yet, from here one also sensed that layer’s great power.

  Others knew it too. Teresa’s sharp eyes picked out sparkling glints which were aircraft—jets and the more common, whalelike zeppelins. Forewar
ned by weather reports on the Net, they were turning to escape a storm brewing west of Lisbon.

  Mark Randall called from the middeck tunnel. “The impatient so-and-so’s already got the inner door open! I better take over before he causes a union grievance.”

  “You do that,” she answered quietly. Mark could handle the passengers. She agreed with the cargo handler, out in the bay. For a rare instant no duties clamored. Teresa let herself share the epiphanic moment, feeling her breath, her heartbeat, and the turning of the world.

  My God, it’s beautiful.…

  So it was that she was watching directly, not through Pleiades’ myriad instrumentalities, when the color of the sea changed—subtly, swiftly. Pulsations throbbed those very storm clouds as she blinked in amazement.

  Then the Earth seemed suddenly to bow out at her. It was a queer sensation. Teresa felt no acceleration. Yet somehow she knew they were moving, rapidly and non-inertially, in defiance of natural law.

  It did occur to her this might be some form of spacesickness—or maybe she was having a stroke. But neither consideration slowed the reflex that sent her hand stabbing down upon the emergency alarm. With the same fluid motion, Teresa seized her space helmet. In that time-stretched second, as she spun around to take command of her ship again, Teresa caught one indelible glimpse of the crewman in the cargo bay, who had turned, mouth open in a startled, silent cry of warning.

  Back in training, other candidates used to complain about the emergency drills, which seemed designed to wear down, even break the hothouse types who had made it that far. Whenever trainees felt they had procedures down pat, or that they knew the drill for any contingency, some smartaleck in a white coat inevitably thought up ways to make the next practice run even nastier. The chief of simulations hired engineers with sadistic imaginations.

  But Teresa never cursed the tiger teams, not even when they threw their worst at her. She used to see the drills as a never-ending exercise in skill. Perhaps that was why she didn’t quail or flinch now, as a storm of noise assailed her.