Astronomy

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Across
  1. 5. — Region between Mars and Jupiter with many asteroids
  2. 6. — Explosive death of a massive star
  3. 8. — Giant cloud of gas where stars form
  4. 10. — Rocky object orbiting the sun
  5. 12. — Closest planet to the sun
  6. 15. — Farthest planet from the sun
  7. 16. — Region where gravity is so strong light cannot escape
  8. 17. — Stream of charged particles from the sun
  9. 19. — Extremely bright object powered by a black hole
  10. 21. — Icy object with a glowing tail when near the sun
  11. 24. — Study of the origin and structure of the universe
  12. 27. — Distance light travels in one year
  13. 29. — Study of the physical properties of celestial objects
Down
  1. 1. — Rapidly spinning neutron star that emits radiation
  2. 2. — Ice giant that rotates on its side
  3. 3. — Event when one celestial body blocks another
  4. 4. — Meteor that reaches Earth's surface
  5. 7. — Path one object takes around another
  6. 9. — Force that pulls objects together
  7. 11. — Largest planet in the solar system
  8. 13. — Planet known for its thick, hot atmosphere
  9. 14. — Planet famous for its rings
  10. 18. — Distant spherical cloud of comets around the solar system
  11. 20. — Area of icy objects beyond Neptune
  12. 22. — Instrument used to observe distant objects in space
  13. 23. — The only known planet with life
  14. 25. — Streak of light from a space rock burning in the atmosphere
  15. 26. — Massive system of stars, gas, and dust
  16. 28. — The “red planet”