that already in their day the sun was about to enter the ‘white dwarf’ phase, and that the time would therefore soon come when their world would be frost-bound. This calculation was unduly pessimistic; but we know now that, even allowing for the slight delay caused by the great collision, the solar collapse must begin at some date astronomically not very distant. We had planned that during the comparatively brief period of the actual shrinkage, we would move our planet steadily nearer to the sun, until finally it should settle in the narrowest possible orbit.
Man would then be comfortably placed for a very long period. But in the fullness of time there would come a far more serious crisis. The sun would continue to cool, and at last man would no longer be able to live by means of solar radiation. It would become necessary to annihilate matter to supply the deficiency. The other planets might be used for this purpose, and possibly the sun itself. Or, given the sustenance for so long a voyage, man might boldly project his planet into the neighbourhood of some younger star. Thenceforth, perhaps, he might operate upon a far grander scale. He might explore and colonize all suitable worlds in every corner of the galaxy, and organize himself as a vast community of minded worlds. Even (so we dreamed) he might achieve intercourse with other galaxies. It did not seem impossible that man himself was the germ of the world-soul, which, we still hope, is destined to awake for a while before the universal decline, and to crown the eternal cosmos with its due of knowledge and admiration, fleeting yet eternal. We dared to think that in some far distant epoch the human spirit, clad in all wisdom, power, and delight, might look back upon our primitive age with a certain respect; no doubt with pity also and amusement, but none the less with admiration for the spirit in us, still only half awake, and struggling against great disabilities. In such a mood, half pity, half admiration, we ourselves look back upon the primitive mankinds.
Our prospect has now suddenly and completely changed, for astronomers have made a startling discovery, which assigns to man a speedy end. His existence has ever been precarious. At any stage of his career he might easily have been exterminated by some slight alteration of his chemical environment, by a more than usually malignant microbe, by a radical change of climate, or by the manifold effects of his own folly. Twice already he has been almost destroyed by astronomical events. How easily might it happen that the solar system, now rushing through a somewhat more crowded region of the galaxy, should become entangled with, or actually strike, a major astronomical body, and be destroyed. But fate, as it turns out, has a more surprising end in store for man.
Not long ago an unexpected alteration was observed to be taking place in a near star. Through no discoverable cause, it began to change from white to violet, and increase in brightness. Already it has attained such extravagant brilliance that, though its actual disc remains a mere point in our sky, its dazzling purple radiance illuminates our nocturnal landscapes with hideous beauty. Our astronomers have ascertained that this is no ordinary ‘nova’, that it is not one of those stars addicted to paroxysms of brilliance. It is something unprecedented, a normal star suffering from a unique disease, a fantastic acceleration of its vital process, a riotous squandering of the energy which should have remained locked within its substance for aeons. At the present rate it will be reduced either to an inert cinder or to actual annihilation in a few thousand years. This extraordinary event may possibly have been produced by unwise tamperings on the part of intelligent beings in the star’s neighbourhood. But, indeed, since all matter at very high temperature is in a state of unstable equilibrium, the cause may have been merely some conjunction of natural circumstances.
The event was first regarded simply as an intriguing spectacle. But further study roused a more serious interest. Our own planet, and therefore the sun also, was suffering a continuous and increasing bombardment of ethereal vibrations, most of which were of incredibly high frequency, and of unknown potentiality. What would be their effect upon the sun? After some centuries, certain astronomical bodies in the neighbourhood of the deranged star were seen to be infected with its disorder. Their fever increased the splendour of our night sky, but it also confirmed our fears. We still hoped that the sun might prove too distant to be seriously influenced, but careful analysis now showed that this hope must be abandoned. The sun’s remoteness might cause a delay of some thousands of years before the cumulative effects of the bombardment could start the disintegration; but sooner or later the sun itself must be infected. Probably within thirty thousand years life will be impossible anywhere within a vast radius of the sun, so vast a radius that it is quite impossible to propel our planet away fast enough to escape before the storm can catch us.
2. BEHAVIOUR OF THE CONDEMNED
The discovery of this doom kindled in us unfamiliar emotions. Hitherto humanity had seemed to be destined for a very long future, and the individual himself had been accustomed to look forward to very many thousands of years of personal life, ending in voluntary sleep. We had of course often conceived, and even savoured in imagination, the sudden destruction of our world. But now we faced it as a fact. Outwardly everyone behaved with perfect serenity, but inwardly every mind was in turmoil. Not that there was any question of our falling into panic or despair, for in this crisis our native detachment stood us in good stead. But inevitably some time passed before our minds became properly adjusted to the new prospect, before we could see our fate outlined clearly and beautifully against the cosmic background.
Presently, however, we learned to contemplate the whole great saga of man as a completed work of art, and to admire it no less for its sudden and tragic end than for the promise in it which was not to be fulfilled. Grief was now transfigured wholly into ecstasy. Defeat, which had oppressed us with a sense of man’s impotence and littleness among the stars, brought us into a new sympathy and reverence for all those myriads of beings in the past out of whose obscure strivings we had been born. We saw the most brilliant of our own race and the lowliest of our prehuman forerunners as essentially spirits of equal excellence, though cast in diverse circumstances. When we looked round on the heavens, and at the violet splendour which was to destroy us, we were filled with awe and pity, awe for the inconceivable potentiality of this bright host, pity for its self-thwarting effort to fulfil itself as the universal spirit.
At this stage it seemed that there was nothing left for us to do but to crowd as much excellence as possible into our remaining life, and meet our end in the noblest manner. But now there came upon us once more the rare experience of racial mentality. For a whole Neptunian year every individual lived in an enraptured trance, in which, as the racial mind, he or she resolved many ancient mysteries and saluted many unexpected beauties. This ineffable experience, lived through under the shadow of death, was the flower of man’s whole being. But I can tell nothing of it, save that when it was over we possessed, even as individuals, a new peace, in which, strangely but harmoniously, were blended grief, exaltation, and god-like laughter.
In consequence of this racial experience we found ourselves faced with two tasks which had not before been contemplated. The one referred to the future, the other to the past.
In respect of the future, we are now setting about the forlorn task of disseminating among the stars the seeds of a new humanity. For this purpose we shall make use of the pressure of radiation from the sun, and chiefly the extravagantly potent radiation that will later be available. We are hoping to devise extremely minute electro-magnetic ‘wave-systems’, akin to normal protons and electrons, which will be individually capable of sailing forward upon the hurricane of solar radiation at a speed not wholly incomparable with the speed of light itself. This is a difficult task. But, further, these units must be so cunningly inter-related that, in favourable conditions, they may tend to combine to form spores of life, and to develop, not indeed into human beings, but into lowly organisms with a definite evolutionary bias toward the essentials of human nature. These objects we shall project from beyond our atmosphere in immense quantities at certain points of our planet’s orbit, so that solar radiation may carry them towards the most promising regions of the galaxy. The chance that any of them will survive to reach their destination is small, and still smaller the chance that any of them will find a suitable environment. But if any of this human seed should fall upon good ground, it will embark, we hope, upon a somewhat rapid biological evolution, and produce in due season