space exploration

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Across
  1. 2. Related to the moon. (5)
  2. 3. A flying machine for space travel. (9)
  3. 4. To send out signals or information. (8)
  4. 6. Empty space with no air. (6)
  5. 8. Facts and information collected for study. (4)
  6. 9. To send a spaceship up into the sky. (6)
  7. 10. Able to do things by yourself. (11)
  8. 11. Not having much space or resources. (7)
  9. 12. A strong wish to be successful. (8)
  10. 13. Able to think and solve problems well. (11)
  11. 15. Related to the sun. (5)
  12. 16. Continuing to happen now. (7)
  13. 17. A group of stars and planets in space. (6)
Down
  1. 1. To move without being held down by gravity. (5)
  2. 2. A person trained to work in space. (8)
  3. 5. A unit or part of a large spacecraft. (6)
  4. 6. To get the right to use or enter something. (6)
  5. 7. A sound or message sent through air or space. (6)
  6. 9. A machine used for carrying people or things. (7)
  7. 10. A special task carried out by astronauts. (7)
  8. 13. The invisible force on Earth. (7)
  9. 14. The act of travelling into space to learn new things. (11)
  10. 15. The great honour from great achievements. (5)
  11. 17. To fix one thing to another. (5)