Space

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Across
  1. 3. Any of the nine large heavenly bodies revolving around the sun and shining by reflected light
  2. 4. A body in space made up of a central mass and a bright tail
  3. 6. A building or room in which the planetary system is represented
  4. 9. A person trained for travelling in space
  5. 10. An instrument to see distant objects in space
Down
  1. 1. The earth's natural satellite
  2. 2. A station orbiting the earth, supporting a crew and used for helping other spacecraft, for observation and research
  3. 5. A hot and usually bright body in space, such as the sun
  4. 7. A space capsule or vehicle put into orbit
  5. 8. An unidentified flying object