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Astronomy
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Clues in this puzzle
Across
- The central star of our solar system (3)
- The regular path one object takes around another in space (5)
- The planet inhabited by humans (5)
- The natural satellite that orbits the Earth (4)
Down
- The region above us where clouds and stars are seen (3)
- A star that suddenly increases in brightness (4)
- The visible energy that travels from the stars (5)
- A flat and circular band of debris around a planet (4)