computer

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Across
  1. 3. Red planet
  2. 4. Extraterrestrial being
  3. 7. Space explorer
  4. 8. Planet closest to the sun
  5. 10. Observation device
  6. 11. Ringed planet
  7. 14. Sun or moon hiding
  8. 15. Path of a celestial object
Down
  1. 1. Giant gas planet
  2. 2. Vast system of stars
  3. 5. Interstellar cloud
  4. 6. Icy celestial body
  5. 9. Force pulling objects
  6. 12. Space rock
  7. 13. Spacecraft for launching