Rocket Revolution

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Across
  1. 2. A large object that travels around a star
  2. 3. An important journey with a special purpose
  3. 7. An object that travels around a planet or other object in space
  4. 8. To send a rocket or spacecraft into space
  5. 9. A giant cloud of gas and dust in space
  6. 10. A bowl-shaped hole on the surface of a planet or moon
  7. 11. The force that pulls objects towards each other
  8. 13. Everything that exists in space
  9. 15. A tool used to observe objects that are far away
Down
  1. 1. A person who designs and builds solutions to problems
  2. 4. A huge group of stars, gas and dust
  3. 5. A person trained to travel and work in space
  4. 6. The curved path an object follows around a planet or star
  5. 12. A vehicle used to travel into space
  6. 14. Able to be used again