Space

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Across
  1. 2. Optical instrument for observing distant objects.
  2. 4. Celestial body with a tail of gas and dust.
  3. 7. Person trained to travel and work in space.
  4. 8. Vast system of stars, planets, and other celestial objects.
  5. 9. Cloud of gas and dust in space.
  6. 10. Path an object takes around another in space.
Down
  1. 1. Small rock or particle in space.
  2. 3. Group of stars forming a recognizable pattern.
  3. 5. Force that pulls objects toward each other.
  4. 6. Object that orbits a planet or celestial body.