| 1 | The spaceship is approaching the planet. | |
| 2 | The universe is a mysterious space. | |
| 3 | The stars in the darkness leave us with a sense of the endless vastness of the universe. | |
| 4 | Humanity's exploration of the universe has gone beyond the scope of the Earth. | |
| 5 | Satellites are an important achievement of human deep space exploration. |
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