But the projectile had passed the _enceinte_ of Tycho, and Barbicane and his two companions watched with scrupulous attention the brilliant rays which the celebrated mountain shed so curiously over the horizon.
What was this radiant glory? What geological phenomenon had designed these ardent beams? This question occupied Barbicane's mind.
Under his eyes ran in all directions luminous furrows, raised at the edges and concave in the center, some twelve miles, others thirty miles broad. These brilliant trains extended in some places to within 600 miles of Tycho, and seemed to cover, particularly toward the east, the northeast and the north, the half of the southern hemisphere. One of these jets extended as far as the circle of Neander, situated on the 40th meridian.
Another, by a slight curve, furrowed the "Sea of Nectar," breaking against the chain of Pyrenees, after a circuit of 800 miles.
Others, toward the west, covered the "Sea of Clouds" and the "Sea of Humors" with a luminous network. What was the origin of these sparkling rays, which shone on the plains as well as on the reliefs, at whatever height they might be?
All started from a common center, the crater of Tycho.
They sprang from him. Herschel attributed their brilliancy to currents of lava congealed by the cold; an opinion, however, which has not been generally adopted. Other astronomers have seen in these inexplicable rays a kind of moraines, rows of erratic blocks, which had been thrown up at the period of Tycho's formation.
"And why not?" asked Nicholl of Barbicane, who was relating and rejecting these different opinions.
"Because the regularity of these luminous lines, and the violence necessary to carry volcanic matter to such distances, is inexplicable.""Eh! by Jove!" replied Michel Ardan, "it seems easy enough to me to explain the origin of these rays.""Indeed?" said Barbicane.
"Indeed," continued Michel. "It is enough to say that it is a vast star, similar to that produced by a ball or a stone thrown at a square of glass!""Well!" replied Barbicane, smiling. "And what hand would be powerful enough to throw a ball to give such a shock as that?""The hand is not necessary," answered Nicholl, not at all confounded; "and as to the stone, let us suppose it to be a comet.""Ah! those much-abused comets!" exclaimed Barbicane. "My brave Michel, your explanation is not bad; but your comet is useless.
The shock which produced that rent must have some from the inside of the star. A violent contraction of the lunar crust, while cooling, might suffice to imprint this gigantic star.""A contraction! something like a lunar stomach-ache." said Michel Ardan.
"Besides," added Barbicane, "this opinion is that of an English savant, Nasmyth, and it seems to me to sufficiently explain the radiation of these mountains.""That Nasmyth was no fool!" replied Michel.
Long did the travelers, whom such a sight could never weary, admire the splendors of Tycho. Their projectile, saturated with luminous gleams in the double irradiation of sun and moon, must have appeared like an incandescent globe. They had passed suddenly from excessive cold to intense heat. Nature was thus preparing them to become Selenites. Become Selenites! That idea brought up once more the question of the habitability of the moon.
After what they had seen, could the travelers solve it? Would they decide for or against it? Michel Ardan persuaded his two friends to form an opinion, and asked them directly if they thought that men and animals were represented in the lunar world.
"I think that we can answer," said Barbicane; "but according to my idea the question ought not to be put in that form. I ask it to be put differently.""Put it your own way," replied Michel.
"Here it is," continued Barbicane. "The problem is a double one, and requires a double solution. Is the moon _habitable_? Has the moon ever been _inhabitable_?""Good!" replied Nicholl. "First let us see whether the moon is habitable.""To tell the truth, I know nothing about it," answered Michel.
"And I answer in the negative," continued Barbicane. "In her actual state, with her surrounding atmosphere certainly very much reduced, her seas for the most part dried up, her insufficient supply of water restricted, vegetation, sudden alternations of cold and heat, her days and nights of 354hours-- the moon does not seem habitable to me, nor does she seem propitious to animal development, nor sufficient for the wants of existence as we understand it.""Agreed," replied Nicholl. "But is not the moon habitable for creatures differently organized from ourselves?""That question is more difficult to answer, but I will try; and I ask Nicholl if _motion_ appears to him to be a necessary result of _life_, whatever be its organization?""Without a doubt!" answered Nicholl.
"Then, my worthy companion, I would answer that we have observed the lunar continent at a distance of 500 yards at most, and that nothing seemed to us to move on the moon's surface. The presence of any kind of life would have been betrayed by its attendant marks, such as divers buildings, and even by ruins. And what have we seen? Everywhere and always the geological works of nature, never the work of man. If, then, there exist representatives of the animal kingdom on the moon, they must have fled to those unfathomable cavities which the eye cannot reach; which I cannot admit, for they must have left traces of their passage on those plains which the atmosphere must cover, however slightly raised it may be. These traces are nowhere visible. There remains but one hypothesis, that of a living race to which motion, which is life, is foreign.""One might as well say, living creatures which do not live,"replied Michel.
"Just so," said Barbicane, "which for us has no meaning.""Then we may form our opinion?" said Michel.
"Yes," replied Nicholl.
