Planets

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Across
  1. 4. A huge, glowing ball of hot gas
  2. 5. A tool scientists use to see distant objects in space
  3. 9. When a planet passes directly in front of its star
  4. 10. A layer of gases surrounding a planet
  5. 11. Our home planet
  6. 12. A large round object that travels around a star
  7. 13. What stars give off that travels through space
  8. 16. Made mostly of solid stone rather than gas
Down
  1. 1. The vast area beyond Earth's atmosphere
  2. 2. The biggest planet in our solar system
  3. 3. The curved path an object takes around a star or planet
  4. 6. A planet outside our solar system
  5. 7. A word meaning extremely large
  6. 8. Related to the Sun
  7. 14. A huge collection of billions of stars, gas, and dust
  8. 15. A natural object that orbits a planet