Across
- 1. The largest object in the asteroid belt
- 5. Comets are made mostly of ice, dust, and this
- 6. NASA's spacecraft that explored asteroids and collected samples
- 7. A meteor that survives and hits Earth’s surface
- 9. The solid core of a comet
- 13. Rocky object that orbits the Sun, mostly found between Mars and Jupiter
- 15. A chunk of rock or metal that burns up in Earth’s atmosphere
Down
- 2. Bright streak of light caused by a meteor in Earth’s sky
- 3. Region beyond Neptune filled with icy objects
- 4. Area where long-period comets may originate, far beyond the planets
- 8. Tiny space dust that enters Earth’s atmosphere and burns up
- 10. Frozen space object with a glowing tail when near the Sun
- 11. The fuzzy cloud of gas and dust around a comet's nucleus
- 12. The planet closest to the asteroid belt
- 14. The path a comet follows around the Sun