Rendezvous with Rama r-1

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by Arthur Charles Clarke


  They had now climbed five kilometres, which in this low and steadily diminishing gravity was equivalent to less than two on Earth. At the third level, three kilometres from the axis, they rested for an hour, taking light refreshments and massaging leg muscles. This was the last point at which they could breathe in comfort; like old-time Himalayan mountaineers, they had left their oxygen supplies here, and now put them on for the final ascent.

  An hour later, they had reached the top of the stairway—and the beginning of the ladder. Ahead lay the last, vertical kilometre, fortunately in a gravity field only a few per cent of Earth’s. Another thirty-minute rest, a careful check of oxygen, and they were ready for the final lap.

  Once again, Norton made sure that all his men were safely ahead of him, spaced out at twenty-metre intervals along the ladder. From now on, it would be a slow, steady haul, extremely boring. The best technique was to empty the mind of all thoughts and to count the rungs as they drifted by—one hundred, two hundred, three hundred, four hundred…

  He had just reached twelve hundred and fifty when he suddenly realized that something was wrong. The light shining on the vertical surface immediately in front of his eyes was the wrong colour—and it was much too bright.

  Commander Norton did not even have time to check his ascent, or to call a warning to his men. Everything happened in less than a second.

  In a soundless concussion of light, dawn burst upon Rama.

  18. Dawn

  The light was so brilliant that for a full minute Norton had to keep his eyes clenched tightly shut. Then he risked opening them, and stared through barely-parted lids at the wall a few centimetres in front of his face. He blinked several times, waited for the involuntary tears to drain away, and then turned slowly to behold the dawn.

  He could endure the sight for only a few seconds; then he was forced to close his eyes again. It was not the glare that was intolerable—he could grow accustomed to that—but the awesome spectacle of Rama, now seen for the first time in its entirety.

  Norton had known exactly what to expect; nevertheless the sight had stunned him. He was seized by a spasm of uncontrollable trembling; his hands tightened round the rungs of the ladder with the violence of a drowning man clutching at a lifebelt. The muscles of his forearms began to knot, yet at the same time his legs—already fatigued by hours of steady climbing—seemed about to give way. If it had not been for the low gravity, he might have fallen.

  Then his training took over, and he began to apply the first remedy for panic. Still keeping his eyes closed and trying to forget the monstrous spectacle around him, he started to take deep, long breaths, filling his lungs with oxygen and washing the poisons of fatigue out of his system.

  Presently he felt much better, but he did not open his eyes until he had performed one more action. It took a major effort of will to force his right hand to open—he had to talk to it like a disobedient child—but presently he manoeuvred it down to his waist, unclipped the safety belt from his harness, and hooked the buckle to the nearest rung. Now, whatever happened, he could not fall.

  Norton took several more deep breaths; then—still keeping his eyes closed—he switched on his radio. He hoped his voice sounded calm and authoritative as he called: “Captain here. Is everyone OK?”

  As he checked off the names one by one, and received answers—even if somewhat tremulous ones—from everybody, his own confidence and self-control came swiftly back to him. All his men were safe, and were looking to him for leadership. He was the commander once more.

  “Keep your eyes closed until you’re quite sure you can take it,” he called. “The view is—overwhelming. If anyone finds that it’s too much, keep on climbing without looking back. Remember, you’ll soon be at zero gravity, so you can’t possibly fall.”

  It was hardly necessary to point out such an elementary fact to trained spacemen, but Norton had to remind himself of it every few seconds. The thought of zero-gravity was a kind of talisman, protecting him from harm. Whatever his eyes told him, Rama could not drag him down to destruction on the plain eight kilometres below.

  It became an urgent matter of pride and self-esteem that he should open his eyes once more and look at the world around him. But first, he had to get his body under control.

  He let go of the ladder with both hands, and hooked his left arm under a rung. Clenching and unclenching his fists, he waited until the muscle cramps had faded away; then, when he felt quite comfortable, he opened his eyes and slowly turned to face Rama.

  His fist impression was one of blueness. The glare that filled the sky could not have been mistaken for sunlight; it might have been that of an electric arc. So Rama’s sun, Norton told himself, must be hotter than ours. That should interest the astronomers…

  And now he understood the purpose of those mysterious trenches, the Straight Valley and its five companions; they were nothing less than gigantic strip-lights. Rama had six linear suns, symmetrically ranged around its interior. From each, a broad fan of light was aimed across the central axis, to shine upon the far side of the world. Norton wondered if they could be switched alternately to produce a cycle of light and darkness, or whether this was a planet of perpetual day.

  Too much staring at those blinding bars of light had made his eyes hurt again; he was not sorry to have a good excuse to close them for a while. It was not until then, when he had almost recovered from this initial visual shock, that he was able to devote himself to a much more serious problem.

  Who or what, had switched on the lights of Rama?

  This world was sterile, by the most sensitive tests that man could apply to it. But now something was happening that could not be explained by the action of natural forces. There might not be life here, but there could be consciousness, awareness; robots might be waking after a sleep of aeons. Perhaps this outburst of light was an unprogrammed, random spasm—a last dying gasp of machines that were responding wildly to the warmth of a new sun, and would soon lapse again into quiescence, this time for ever.

  Yet Norton could not believe such a simple explanation. Bits of the jigsaw puzzle were beginning to fall into place, though many were still missing. The absence of all signs of wear, for example—the feeling of newness, as if Rama had just been created…

  These thoughts might have inspired fear, even terror. Somehow, they did nothing of the sort. On the contrary, Norton felt a sense of exhilaration—almost of delight. There was far more here to discover than they had ever dared to hope. “Wait,” he said to himself, “until the Rama Committee hears about this!”

  Then, with a calm determination, he opened his eyes again and began a careful inventory of everything he saw.

  First, he had to establish some kind of reference system. He was looking at the largest enclosed space ever seen by man, and needed a mental map to find his way around it.

  The feeble gravity was very little help, for with an effort of will he could switch Up and Down in any direction he pleased. But some directions were psychologically dangerous; whenever his mind skirted these, he had to vector it hastily away.

  Safest of all was to imagine that he was at the bowl-shaped bottom of a gigantic well, sixteen kilometres wide and fifty deep. The advantage of this image was that there could be no danger of falling further, nevertheless it had some serious defects.

  He could pretend that the scattered towns and cities, and the differently coloured and textured areas, were all securely fixed to the towering walls. The various complex structures that could be seen hanging from the dome overhead were perhaps no more disconcerting than the pendent candelabra in some great concert-ball on Earth. What was quite unacceptable was the Cylindrical Sea.

  There it was, halfway up the well-shaft—a band of water, wrapped completely round it, with no visible means of support. There could be no doubt that it was water; it was a vivid blue, flecked with brilliant sparkles from the few remaining ice floes. But a vertical sea forming a complete circle twenty kilometres up in the sky was such
an unsettling phenomenon that after a while he began to seek an alternative.

  That was when his mind switched the scene through ninety degrees. Instantly, the deep well became a long tunnel, capped at either end. “Down” was obviously in the direction of the ladder and the stairway he had just ascended; and now with this perspective, Norton was at last able to appreciate the true vision of the architects who had built this place.

  He was clinging to the face of a curving sixteen-kilometre-high cliff, the upper half of which overhung completely until it merged into the arched roof of what was now the sky. Beneath him, the ladder descended more than five hundred metres, until it ended at the first ledge or terrace. There the stairway began, continuing almost vertically at first in this low-gravity regime, then slowly becoming less and less steep until, after breaking at five more platforms, it reached the distant plain. For the first two or three kilometres he could see the individual steps, but thereafter they had merged into a continuous band.

  The downward swoop of that immense stairway was so overwhelming that it was impossible to appreciate its true scale. Norton had once flown round Mount Everest, and had been awed by its size. He reminded himself that this stairway was as high as the Himalayas, but the comparison was meaningless.

  And no comparison at all was possible with the other two stairways, Beta and Gamma, which slanted up into the sky and then curved far out over his head. Norton had now acquired enough confidence to lean back and glance up at them—briefly. Then he tried to forget that they were there…

  For too much thinking along those lines evoked yet a third image of Rama, which he was anxious to avoid at all costs. This was the viewpoint that regarded it once again as a vertical cylinder or well—but now he was at the top, not the bottom, like a fly crawling upside down on a domed ceiling, with a fifty-kilometre drop immediately below. Every time Norton found this image creeping up on him, it needed all his willpower not to cling to the ladder again in mindless panic.

  In time, he was sure, all these fears would ebb. The wonder and strangeness of Rama would banish its terrors, at least for men who were trained to face the realities of space. Perhaps no one who had never left Earth, and had never seen the stars all around him, could endure these vistas. But if any men could accept them, Norton told himself with grim determination, it would be the captain and crew of Endeavour.

  He looked at his chronometer. This pause had lasted only two minutes, but it had seemed a lifetime. Exerting barely enough effort to overcome his inertia and the fading gravitational field, he started to pull himself slowly up the last hundred metres of the ladder. Just before he entered the airlock and turned his back upon Rama, he made one final swift survey of the interior.

  It had changed, even in the last few minutes; a mist was rising from the Sea. For the first few hundred metres the ghostly white columns were tilted sharply forward in the direction of Rama’s spin; then they started to dissolve in a swirl of turbulence, as the uprushing air tried to jettison its excess velocity. The Trade Winds of this cylindrical world were beginning to etch their patterns in its sky; the first tropical storm in unknown ages was about to break.

  19. A Warning from Mercury

  It was the first time in weeks that every member of the Rama Committee had made himself available. Professor Solomons had emerged from the depths of the Pacific, where he had been studying mining operations along the mid-ocean trenches. And to nobody’s surprise, Dr. Taylor had reappeared, now that there was at least a possibility that Rama held something more newsworthy than lifeless artifacts.

  The Chairman had fully expected Dr. Carlisle Perera to be even more dogmatically assertive than usual, now that his prediction of a Raman hurricane had been confirmed. To His Excellency’s great surprise, Perera was remarkably subdued, and accepted the congratulations of his colleagues in a manner as near to embarrassment as he was ever likely to achieve.

  The exobiologist, in fact, was deeply mortified. The spectacular break-up of the Cylindrical Sea was a much more obvious phenomenon than the hurricane winds—yet he had completely overlooked it. To have remembered that hot air rises, but to have forgotten that hot ice contracts, was not an achievement of which he could be very proud. However, he would soon get over it, and revert to his normal Olympian self-confidence.

  When the Chairman offered him the floor, and asked what further climatic changes he expected, he was very careful to hedge his bets.

  “You must realize,” he explained, “that the meteorology of a world as strange as Rama may have many other surprises. But if my calculations are correct, there will be no further storms, and conditions will soon be stable. There will be a slow temperature rise until perihelion—and beyond—but that won’t concern us, as Endeavour will have had to leave long before then.”

  “So it should soon be safe to go back inside?”

  “Er—probably. We should certainly know in forty-eight hours.”

  “A return is imperative,” said the Ambassador for Mercury. “We have to learn everything we possibly can about Rama. The situation has now changed completely.”

  “I think we know what you mean, but would you care to elaborate?”

  “Of course. Until now, we have assumed that Rama is lifeless—or at any rate uncontrolled. But we can no longer pretend that it is a derelict. Even if there are no life forms aboard, it may be directed by robot mechanisms, programmed to carry out some mission—perhaps one highly disadvantageous to us. Unpalatable though it may be, we must consider the question of self-defence.” There was a babble of protesting voices, and the Chairman had to hold up his hand to restore order.

  “Let His Excellency finish!” he pleaded. “Whether we like the idea or not, it should be considered seriously.”

  “With all due respect to the Ambassador,” said Dr. Conrad Taylor in his most disrespectful voice, “I think we can rule out as naive the fear of malevolent intervention. Creatures as advanced as the Ramans must have correspondingly developed morals. Otherwise, they would have destroyed themselves—as we nearly did in the twentieth century. I’ve made that quite clear in my new book Ethos and Cosmos. I hope you received your copy.”

  “Yes, thank you, though I’m afraid the pressure of other matters has not allowed me to read beyond the introduction. However, I’m familiar with the general thesis. We may have no malevolent intentions towards an ant-heap. But if we want to build a house on the same site…”

  “This is as bad as the Pandora Party! It’s nothing less than interstellar xenophobia!”

  “Please, gentlemen! This is getting us nowhere. Mr. Ambassador, you still have the floor.”

  The Chairman glared across three hundred and eighty thousand kilometres of space at Conrad Taylor, who reluctantly subsided, like a volcano biding its time.

  “Thank you,” said the Ambassador for Mercury. “The danger may be unlikely, but where the future of the human race is involved, we can take no chances. And, if I may say so, we Hermians may be particularly concerned. We may have more cause for alarm than anyone else.”

  Dr. Taylor snorted audibly, but was quelled by another glare from the Moon.

  “Why Mercury, more than any other planet?” asked the Chairman.

  “Look at the dynamics of the situation. Rama is already inside our orbit. It is only an assumption that it will go round the sun and head on out again into space. Suppose it carries out a braking manoeuvre? If it does so, this will be at perihelion, about thirty days from now. My scientists tell me that if the entire velocity change is carried out there, Rama will end up in a circular orbit only twenty-five million kilometres from the sun. From here, it could dominate the solar system.”

  For a long time nobody—not even Conrad Taylor—spoke a word. All the members of the Committee were marshalling their thoughts about those difficult people, the Hermians, so ably represented here by their Ambassador.

  To most people, Mercury was a fairly good approximation of Hell; at least, it would do until something worse came along. But th
e Hermians were proud of their bizarre planet, with its days longer than its years, its double sunrises and sunsets, its rivers of molten metal… By comparison, the Moon and Mars had been almost trivial challenges. Not until men landed on Venus (if they even did) would they encounter an environment more hostile than that of Mercury.

  And yet this world had turned out to be, in many ways, the key to the solar system. This seemed obvious in retrospect, but the Space Age had been almost a century old before the fact was realized. Now the Hermians never let anyone forget it.

  Long before men reached the planet, Mercury’s abnormal density hinted at the heavy elements it contained; even so, its wealth was still a source of astonishment, and had postponed for a thousand years any fears that the key metals of human civilization would be exhausted. And these treasures were in the best possible place, where the power of the Sun was ten times greater than on frigid Earth.

  Unlimited energy—unlimited metal; that was Mercury. Its great magnetic launchers could catapult manufactured products to any point in the solar system. It could also export energy, in synthetic transuranium isotopes or pure radiation. It had even been proposed that Hermian lasers would one day thaw out gigantic Jupiter, but this idea had not been well received on the other worlds. A technology that could cook Jupiter had too many tempting possibilities for interplanetary blackmail.

  That such a concern had ever been expressed said a good deal about the general attitude towards the Hermians. They were respected for their toughness and engineering skills, and admired for the way in which they had conquered so fearsome a world. But they were not liked, and still less were they completely trusted. At the same time, it was possible to appreciate their point of view. The Hermians, it was often joked, sometimes behaved as if the Sun was their personal property. They were bound to it in an intimate love-hate relationship—as the Vikings had once been linked to the sea, the Nepalese to the Himalayas, the Eskimos to the Tundra. They would be most unhappy if something came between them and the natural force that dominated and controlled their lives.

 

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