SCIENCE AND SPACE

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Across
  1. 4. Natural objects in space like stars and planets. (combined for crossword entry)
  2. 7. A round object that orbits a star.
  3. 9. The invisible line through a spinning object. (can be simplified to AXIS if needed)
  4. 13. An object that does not emit light. (use without hyphen for crossword tools)
  5. 15. A set of star signs, like Leo or Aries.
Down
  1. 1. A frozen ball of dust and gas with a tail.
  2. 2. The star at the center of our solar system. (no spaces for crossword entry)
  3. 3. A huge group of stars and planets.
  4. 5. A machine that travels around a planet.
  5. 6. The path of a planet around the Sun.
  6. 8. Our home planet.
  7. 10. A small rocky object in space.
  8. 11. An object that produces its own light.
  9. 12. A massive luminous sphere of gas held together by gravity. (used as one word)
  10. 14. A cloud of gas and dust in space.