Space-related terms

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Across
  1. 3. An instrument used to observe distant objects in space
  2. 7. A person who travels and works in space
  3. 8. system A system that includes a star and all the objects that orbit it
  4. 9. A celestial body that orbits a star and is not a moon
  5. 10. A celestial object made of ice and dust that orbits the Sun
  6. 11. The force that attracts objects toward each other
  7. 13. The path an object takes as it revolves around another object
  8. 14. A vehicle designed to propel itself through space
  9. 15. A natural satellite that orbits a planet
  10. 16. A small piece of rock or metal that burns up in Earth's atmosphere
Down
  1. 1. A large, glowing ball of gas in space
  2. 2. A vehicle designed for travel or operation in outer space
  3. 4. A massive system of stars, gas, and dust held together by gravity
  4. 5. An object that orbits a planet or a star
  5. 6. All of space and everything in it
  6. 12. A scientist who studies celestial objects and phenomena
  7. 14. response