10S

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Across
  1. 1. a space empty of matter six
  2. 3. moving around a celestial body eight
  3. 8. a body that orbits a planet nine
  4. 9. a system of millions of stars six
  5. 10. a region in space with strong gravity nine
  6. 12. the force that attracts a body toward the center of the earth six
  7. 14. an astronomical event seven
Down
  1. 2. a space rock in Earth's atmosphere six
  2. 4. a cloud in outer space six
  3. 5. cosmic particles four
  4. 6. an instrument for observing distant objects nine
  5. 7. distance light travels in one year nine
  6. 8. light from a star nine
  7. 11. the universe six
  8. 13. a small rocky body seven