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Updated: June 8, 2025
If at equal distances from the sun any satellite, in proportion to the quantity of its matter, did gravitate towards the sun with a force greater than Jupiter in proportion to his, according to any given proportion, suppose d to e; then the distance between the centres of the sun and of the satellite's orbit would be always greater than the distance between the centres of the sun and of Jupiter nearly in the subduplicate of that proportion: as by some computations I have found.
And if the satellite did gravitate towards the sun with a force, lesser in the proportion of e to d, the distance of the centre of the satellite's orb from the sun would be less than the distance of the centre of Jupiter from the sun in the subduplicate of the same proportion.
"The acclimatization project looks shaky!" cried Ardan, handing the animal very carefully and tenderly to the others. Poor Satellite's head had been crushed against the roof, but, though recovery seemed hopeless, they laid the body on a soft cushion, and soon had the satisfaction of hearing it give vent to a slight sigh. "Good!" said Ardan, "while there's life there's hope.
"Why, don't they use his skin to make drums of?" Barbicane and Nicholl could not help laughing at this absurd reflection. But a cry from their merry companion stopped them; he was bending over Satellite's niche, and rose up saying "Good! Satellite is no longer ill." "Ah!" said Nicholl. "No!" resumed Michel, "he is dead. Now," he added in a pitiful tone, "this will be embarrassing!
They could no more think that men would ever come to live here than we can now think of moving on to the sun. In course of time this earth cooled off. It cooled so thoroughly that the moon died of cold. Life could no longer continue there. The dead satellite's destiny thenceforward was to show gratitude for past heat by moving our tides and cheering our poets.
The projectile, held by some unaccountable force, had been within four miles of grazing the satellite's north pole. But since entering the cone of shadow these last two hours, had the distance increased or diminished? Every point of mark was wanting by which to estimate both the direction and the speed of the projectile.
The sudden and complete occultation of the stars when the moon's disk passes between them and the place of the observer on the earth's surface, is sufficient evidence of the absence of air; and, as no cloud has ever been noticed to veil even for a moment any part of our satellite's face, we are pretty safe in concluding that there is no water; or at least, if there be any, that it is inappreciable in quantity.
It was the twilight-zone of the satellite's orbit, when for a time the sunlight that reached it was light which had passed through Earth's atmosphere and been bent by it and colored crimson by the dust in Earth's air. It glowed a fiery red, and the color deepened, and then there was darkness. They were in Earth's shadow. There were stars to be seen, but no sun. The Moon was hidden, too.
When the sun star rose over the satellite's horizon, the three boys were stretched out flat on their stomachs in a field, watching the morning activity of Jane, Billy, and Hyram Logan about the farm. "Think we can get them to help us?" asked Roger. "It's the only thing we can do," said Astro. "If they won't, we might as well give ourselves up. I'm so hungry I could eat a whole cow!"
These pictures, which they recognised as an immeasurable development of what is called the cinematograph process on Earth, extended through the whole gamut of the satellite's life. They formed, in fact, the means by which the children of Ganymede were taught the history of their world. It was, of course, inevitable that the Astronef should prove an object of intense interest to their hosts.
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