Space Exploration

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Across
  1. 2. Specific task or assignment in space exploration
  2. 4. Path followed by a spacecraft around a celestial body
  3. 5. Interstellar cloud of dust and gases
  4. 9. International Space Station
  5. 10. Instrument for observing distant objects in space
  6. 12. Spacecraft used for landing on the Moon
  7. 14. Vehicle used to propel spacecraft into space
  8. 15. Rocky object orbiting the Sun
  9. 17. NASA program that landed humans on the Moon
  10. 18. Extravehicular activity outside a spacecraft
  11. 19. Astronaut from Russia or the former Soviet Union
Down
  1. 1. Relating to travel between planets
  2. 2. Fourth planet from the Sun
  3. 3. Object placed in orbit around a celestial body
  4. 6. Natural satellite of Earth
  5. 7. Profession of someone who travels to space
  6. 8. Vast system of stars, gas, and dust
  7. 11. Sending a spacecraft into space
  8. 13. Act of traveling or investigating outer space
  9. 16. Vehicle designed for travel or operation in space