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  RENDEZVOUZ WITH RAMA

  Arthur C Clarke

  Science Fiction Masterworks Volume 65

  eGod

  Enter the SF Gateway

  In the last years of the twentieth century (as Wells might have put it), Gollancz, Britain’s oldest and most distinguished science fiction imprint, created the SF and Fantasy Masterworks series. Dedicated to re-publishing the English language’s finest works of SF and Fantasy, most of which were languishing out of print at the time, they were – and remain – landmark lists, consummately fulfilling the original mission statement:

  ‘SF MASTERWORKS is a library of the greatest SF ever written, chosen with the help of today’s leading SF writers and editors. These books show that genuinely innovative SF is as exciting today as when it was first written.’

  Now, as we move inexorably into the twenty-first century, we are delighted to be widening our remit even more. The realities of commercial publishing are such that vast troves of classic SF & Fantasy are almost certainly destined never again to see print. Until very recently, this meant that anyone interested in reading any of these books would have been confined to scouring second-hand bookshops. The advent of digital publishing has changed that paradigm for ever.

  The technology now exists to enable us to make available, for the first time, the entire backlists of an incredibly wide range of classic and modern SF and fantasy authors. Our plan is, at its simplest, to use this technology to build on the success of the SF and Fantasy Masterworks series and to go even further.

  Welcome to the new home of Science Fiction & Fantasy. Welcome to the most comprehensive electronic library of classic SFF titles ever assembled.

  Welcome to the SF Gateway.

  CONTENTS

  TITLE PAGE

  GATEWAY INTRODUCTION

  CONTENTS

  CHAPTER ONE – Spaceguard

  CHAPTER TWO – Intruder

  CHAPTER THREE - Rama and Sita

  CHAPTER FOUR - Rendezvous

  CHAPTER FIVE - First EVA

  CHAPTER SIX – Committee

  CHAPTER SEVEN - Two Wives

  CHAPTER EIGHT - Through the Hub

  CHAPTER NINE - Reconnaissance

  CHAPTER TEN - Descent into Darkness

  CHAPTER ELEVEN - Men, Women and Monkeys

  CHAPTER TWELVE - The Stairway of the Gods

  CHAPTER THIRTEEN - The Plain of Rama

  CHAPTER FOURTEEN - Storm Warning

  CHAPTER FIFTEEN - The Edge of the Sea

  CHAPTER SIXTEEN - Kealakekua

  CHAPTER SEVENTEEN - Spring

  CHAPTER EIGHTEEN - Dawn

  CHAPTER NINETEEN - A Warning from Mercury

  CHAPTER TWENTY - Book of Revelation

  CHAPTER TWENTY ONE - After the Storm

  CHAPTER TWENTY TWO - To Sail the Cylindrical Sea

  CHAPTER TWENTY THREE - NY, Rama

  CHAPTER TWENTY FOUR – Dragonfly

  CHAPTER TWENTY FIVE - Maiden Flight

  CHAPTER TWENTY SIX - The Voice of Rama

  CHAPTER TWENTY SEVEN - Electric Wind

  CHAPTER TWENTY EIGHT - Icarus

  CHAPTER TWENTY NINE - First Contact

  CHAPTER THIRTY- The Flower

  CHAPTER THIRTY ONE - Terminal Velocity

  CHAPTER THIRTY TWO - The Wave

  CHAPTER THIRTY THREE - Spider

  CHAPTER THIRTY FOUR - His Excellency Regrets...

  CHAPTER THIRTY FIVE - Special Delivery

  CHAPTER THIRTY SIX - Riot Watcher

  CHAPTER THIRTY SEVEN - Missile

  CHAPTER THIRTY EIGHT - General Assembly

  CHAPTER THIRTY NINE - Command Decision

  CHAPTER FORTY - Saboteur

  CHAPTER FORTY ONE - Hero

  CHAPTER FORTY TWO - Temple of Glass

  CHAPTER FORTY THREE - Retreat

  CHAPTER FORTY FOUR - Space Drive

  CHAPTER FORTY FIVE - Phoenix

  CHAPTER FORTY SIX - Interlude

  ABOUT THE AUTHOR

  CHAPTER ONE – Spaceguard

  Sooner or later, it was bound to happen. On 30 June 1908, Moscow escaped destruction by three hours and four thousand kilometres - a margin invisibly small by the standards of the universe. Again, on 12 February 1947, yet another Russian city had a still narrower escape, when the second great meteorite of the twentieth century detonated less than four hundred kilometres from Vladivostok, with an explosion rivalling that of the newly invented uranium bomb.

  In those days, there was nothing that men could do to protect themselves against the last random shots in the cosmic bombardment that had once scarred the face of the Moon. The meteorites of 1908 and 1947 had struck uninhabited wilderness; but by the end of the twenty-first century, there was no region left on Earth that could be safely used for celestial target practice. The human race had spread from pole to pole. And so, inevitably.

  At 09.46 GMT on the morning of 11 September, in the exceptionally beautiful summer of the year 2077, most of the inhabitants of Europe saw a dazzling fireball appear in the eastern sky. Within seconds it was brighter than the sun, and as it moved across the heavens - at first in utter silence - it left behind it a churning column of dust and smoke.

  Somewhere above Austria it began to disintegrate, producing a series of concussions so violent that more than a million people had their hearing permanently damaged. They were the lucky ones.

  Moving at fifty kilometres a second, a thousand tons of rock and metal impacted on the plains of northern Italy, destroying in a few flaming moments the labour of centuries. The cities of Padua and Verona were wiped from the face of the earth; and the last glories of Venice sank for ever beneath the sea as the waters of the Adriatic came thundering landwards after the hammer-blow from space.

  Six hundred thousand people died, and the total dam age was more than a trillion dollars. But the loss to art, to history, to science - to the whole human race, for the rest of time - was beyond all computation. It was as if a great war had been fought and lost in a single morning; and few could draw much pleasure from the fact that, as the dust of destruction slowly settled, for months the whole world witnessed the most splendid dawns and sunsets since Krakatoa. After the initial shock, mankind reacted with a determination and a unity that no earlier age could have shown. Such a disaster, it was realized, might not occur again for a thousand years - but it might occur tomorrow. And the next time, the consequences could be even worse.

  Very well; there would be no next time.

  A hundred years earlier a much poorer world, with far feebler resources, had squandered its wealth attempting to destroy weapons launched, suicidally, by mankind against itself. The effort had never been successful, but the skills acquired then had not been forgotten. Now they could be used for a far nobler purpose, and on an infinitely vaster stage. No meteorite large enough to cause catastrophe would ever again be allowed to breach the defences of Earth.

  So began Project SPACEGUARD. Fifty years later - and in a way that none of its designers could ever have anticipated - it justified its existence.

  CHAPTER TWO – Intruder

  By the year 2130, the Mars-based radars were discovering new asteroids at the rate of a dozen a day. The SPACEGUARD computers automatically calculated their orbits, and stored away the information in their enormous memories, so that every few months any interested astronomer could have a look at the accumulated statistics. These were now quite impressive.

  It had taken more than a hundred and twenty years to collect the first thousand asteroids, since the discovery of Ceres, largest of these tiny worlds, on the very first day of the nineteenth century. Hundreds had been found and lost and found again; they existed in such swarms that one exasperated astronomer had christened
them 'vermin of the skies'. He would have been appalled to know that SPACEGUARD was now keeping track of half a million.

  Only the five giants - Ceres, Pallas, Juno, Eunomia and Vesta - were more than two hundred kilometres in diameter; the vast majority were merely oversized boulders that would fit into a small park. Almost all moved in orbits that lay beyond Mars; only the few that came far enough sunwards to be a possible danger to Earth were the concern of SPACEGUARD. And not one in a thousand of these, during the entire future history of the solar system, would pass within a million kilometres of Earth.

  The object first catalogued as 31/439, according to the year and the order of its discovery, was detected while still outside the orbit of Jupiter. There was nothing unusual about its location; many asteroids went beyond Saturn before turning once more towards their distant master, the sun. And Thule II, most far-ranging of all, travelled so close to Uranus that it might well have been a lost moon of that planet.

  But a first radar contact at such a distance was unprecedented; clearly, 31/439 must be of exceptional size. From the strength of the echo, the computers deduced a diameter of at least forty kilometres; such a giant had not - been discovered for a hundred years. That it had been overlooked for so long seemed incredible.

  Then the orbit was calculated, and the mystery was resolved - to be replaced by a greater one. 31/439 was not travelling on a normal asteroidal path, along an ellipse which it retraced with clockwork precision every few years. It was a lonely wanderer between the stars, making its first and last visit to the solar system - for it was moving so swiftly that the gravitational field of the sun could never capture it. It would flash inwards past the orbits of Jupiter, Mars, Earth, Venus and Mercury, gaining speed as it did so, until it rounded the sun and headed out once again into the unknown.

  It was at this point that the computers started flashing their 'Hi there! We have something interesting' sign, and for the first time 31/439 came to the attention of human beings. There was a brief flurry of excitement at SPACEGUARD Headquarters, and the interstellar vagabond was quickly dignified by a name instead of a mere number. Long ago, the astronomers had exhausted Greek and Roman mythology; now they were working through the Hindu pantheon. And so 31/439 was christened Rama.

  For a few days, the news media made a fuss of the visitor, but they were badly handicapped by the sparsity of information. Only two facts were known about Rama - its unusual orbit, and its approximate size. Even this was merely an educated guess, based upon the strength of the radar echo. Through the telescope, Rama still appeared as a faint, fifteenth magnitude star - much too small to show a visible disc But as it plunged in towards the heart of the solar system, it would grow brighter and larger, month by month; before it vanished forever, the orbiting observatories would be able to gather more precise information about its shape and size. There was plenty of time, and perhaps during the next 'few years some spaceship on its ordinary business might be routed close enough to get good photographs. An actual rendezvous was most unlikely; the energy cost would be far too great to permit physical contact with an object cutting across the orbits of the planets at more than a hundred thousand kilometres an hour.

  So the world soon forgot about Rama; but the astronomers did not. Their excitement grew with the passing months, as the new asteroid presented them with more and more puzzles.

  First of all, there was the problem of Rama's light curve. it didn't have one.

  All known asteroids, without exception, showed a slow variation in their brilliance, waxing and waning within a period of a few hours. It had been recognized for more than two centuries that this was an inevitable result of their spin, and their irregular shape. As they toppled end over end along their orbits the reflecting surfaces they presented to the sun were continually changing, and their brightness varied accordingly.

  Rama showed no such changes. Either it was not spinning at all or it was perfectly symmetrical. Both explanations seemed equally unlikely.

  There the matter rested for several months, because none of the big orbiting telescopes could be spared from their regular job of peering into the remote depths of the universe. Space astronomy was an expensive hobby, and time on a large instrument could easily cost a thousand dollars a minute. Dr William Stenton would never have been able to grab the Farside two-hundred-metre reflector for a full quarter of an hour, if a more important programme had not been temporarily derailed by the failure of a fifty cent capacitor. One astronomer's bad luck was his good fortune.

  Bill Stenton did not know what he had caught until the next day, when he was able to get computer time to process his results. Even when they were finally flashed on his display screen, it took him several minutes to understand what they meant.

  The sunlight reflected from Rama was not, after all, absolutely constant in its intensity. There was a very small variation - hard to detect, but quite unmistakable, and extremely regular. Like all the other asteroids, Rama was indeed spinning. But whereas the normal 'day' for an asteroid was several hours, Rama's was only four minutes.

  Dr Stenton did some quick calculations, and found it hard to believe the results. At its equator, this tiny world must be spinning at more than a thousand kilometres an hour; it would be rather unhealthy to attempt a landing anywhere except at the poles. The centrifugal force at Rama's equator must be powerful enough to flick any loose objects away from it at an acceleration of almost one gravity. Rama was a rolling stone that could never have gathered any cosmic moss; it was surprising that such a body had managed to hold itself together, and- had not long ago shattered into a million fragments.

  An object forty kilometres across, with a rotation period of only four minutes - where did that fit into the astronomical scheme of things? Dr Stenton was a somewhat imaginative man, a little too prone to jump to conclusions. He now jumped to one which gave him a very uncomfortable few minutes indeed.

  The only specimen of the celestial zoo that fitted this description was a collapsed star. Perhaps Rama was a dead sun - a madly spinning sphere of neutronium, every cubic centimetre weighing billions of tons...

  At this point, there flashed briefly through Dr Stenton's horrified mind the memory of that timeless classic, H. G. Wells's The Star. He had first read it as a very small boy, and it had helped to spark his interest in astronomy. Across more than two centuries of time, it had lost none of its magic and terror. He would never forget the images of hurricanes and tidal waves, of cities sliding into the sea, as that other visitor from the stars smashed into Jupiter and then fell sunwards past the Earth. True, the star that old Wells described was not cold, but incandescent, and wrought much of its destruction by heat. That scarcely mattered; even if Rama was a cold body, reflecting only the light of the sun, it could kill by gravity as easily as by fire.

  Any stellar mass intruding into the solar system would completely distort the orbits of the planets. The Earth had only to move a few million kilometres sunwards - or starwards - for the delicate balance of climate to be destroyed. The Antarctic icecap could melt and flood all :low4ying land; or the oceans could freeze and the whole world be locked in an eternal winter. Just a nudge in either direction would be enough.

  Then Dr Stenton relaxed and breathed a sigh of relief. This was all nonsense; he should be ashamed of himself.

  Rama could not possibly be made of condensed matter. No star-sized mass could penetrate so deeply into the solar system without producing disturbances which would have betrayed it long ago. The orbits of all the planets would have been affected; that, after all, was how Neptune, Pluto and Persephone had been discovered. No, it was utterly impossible for an object as massive as a dead sun to sneak up unobserved.

  In a way, it was a pity. An encounter with a dark star would have been quite exciting.

  While it lasted...

  CHAPTER THREE - Rama and Sita

  The extraordinary meeting of the Space Advisory Council was brief and stormy. Even in the twenty-second century, no way had yet been di
scovered of keeping elderly and conservative scientists from occupying crucial administrative positions. Indeed, it was doubted if the problem ever would be solved.

  To make matters worse, the current Chairman of the SAC was Professor (Emeritus) Olaf Davidson, the distinguished astrophysicist. Professor Davidson was not very much interested in objects smaller than galaxies, and never bothered to conceal his prejudices. And though he had to admit that ninety per cent of his science was now based upon observations from space-borne instruments, he was not at all happy about it. No less than three times during his distinguished career, satellites specially launched to prove one of his pet theories had done precisely the opposite.

  The question before the Council was straightforward enough. There was no doubt that Rama was an unusual object - but was it an important one? In a few months it would be gone forever, so there was little time in which to act. Opportunities missed now would never recur.

  At rather a horrifying cost, a space-probe soon to be launched from Mars to beyond Neptune could be modified and sent on a high-speed trajectory to meet Rama. There was no hope of a rendezvous; it would be the fastest fly-by on record, for the two bodies would pass each other at two hundred thousand kilometres an hour. Rama would be observed intensively for only a few minutes - and in real close-up for less than a second. But with the right instrumentation, that would be long enough to settle many questions.

  Although Professor Davidson took a very jaundiced view of the Neptune probe, it had already been approved and he saw no point in sending more good money after bad. He spoke eloquently on the follies of asteroid-chasing, and the urgent need for a new high-resolution interferometer on the Moon to prove the newly-revived Big Bang theory of creation, once and for all. That was a grave tactical error, because the three most ardent supporters of the Modified Steady State Theory were also members of the Council. They secretly agreed with Professor Davidson that asteroid-chasing was a waste of money; nevertheless...