Astronomy

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Across
  1. 5. Massive rock floating freely through space
  2. 7. Rocky object orbiting the Sun, mostly between Mars and Jupiter
  3. 9. A meteor that reaches Earth’s surface without burning up completely
  4. 12. Result of a space object crashing into Earth
  5. 14. Bright core of a comet
  6. 15. A fun name for the icy nucleus of a comet, often only visible through telescopes
  7. 19. A small planet-like body, like Ceres or Pluto
  8. 21. Interstellar object that entered our solar system in 2017
  9. 24. Smaller space rock that can become a meteor when entering Earth’s atmosphere
  10. 27. The bubble-like region formed by the solar wind
  11. 28. The time when Earth moves through a comet’s debris
  12. 29. A streak of light caused by a space rock burning in Earth's atmosphere
  13. 30. Solar system feature beyond Neptune containing dwarf planets
  14. 32. The solar system’s boundary defined by solar particles
  15. 33. NASA mission that returned samples from an asteroid
  16. 34. Famous space telescope that has spotted many asteroids and comets
Down
  1. 1. Large band of icy bodies beyond Neptune
  2. 2. A well-known comet that appears every 76 years
  3. 3. The leftover building blocks of planets
  4. 4. The force that keeps objects in orbit
  5. 6. Cloud of gas and dust pushed away from the Sun by solar wind
  6. 8. Fast-moving object from space that enters Earth's atmosphere
  7. 10. Icy space object with a glowing tail when near the Sun
  8. 11. The point in a planet’s orbit farthest from the Sun
  9. 13. The point in a planet’s orbit closest to the Sun
  10. 16. Hypothetical distant cloud of icy objects surrounding the solar system
  11. 17. A glowing meteor that is exceptionally bright
  12. 18. Tiny dust grains in space that can cause meteors
  13. 20. A space object that enters Earth’s atmosphere at high speed
  14. 22. A group of asteroids that share Jupiter's orbit
  15. 23. Meteor that explodes in the atmosphere with high brightness
  16. 25. The path a space object follows around a star or planet
  17. 26. Stream of charged particles released from the Sun
  18. 27. Protective field created by the Sun, encompassing the solar system
  19. 31. Trail of dust and debris left by a comet