In the empty universe.
Chen Sheng, who had arrived between the Earth's and the Moon's orbits at some point, could feel an extreme sense of emptiness and boundless loneliness.
The Earth and the Moon appear to be very close together, but in fact there is a vast and boundless distance between them.
Perhaps everyone feels that the solar system, the Earth-Moon system, and Earth's low-Earth orbit are crowded.
Astronomers have currently discovered 8 planets, 5 dwarf planets, 230 satellites, approximately 120,000 asteroids, and more than 4,100 comets in the solar system.
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