Across
- 1. The star at the center of our solar system.
- 3. hole A place in space where gravity is so strong that not even light can escape.
- 5. Celestial body that orbits a star.
- 8. Oval shape that describes planetary orbits.
- 10. planets Planets farthest from the Sun (Jupiter, Saturn, Uranus, Neptune).
- 11. Small rocky object that orbits the Sun.
- 13. Path an object follows around another in space.
- 15. Icy, dusty object that orbits the Sun with a bright tail.
- 16. Imaginary line that a planet spins around.
- 20. Group of stars that form a recognizable pattern in the sky.
- 22. Massive collection of stars, planets, and dust bound by gravity.
Down
- 2. Cloud of gas and dust where stars are born.
- 4. Movement of one object around another, like Earth’s orbit around the Sun.
- 6. Small piece of rock or metal that travels through space.
- 7. year Distance light travels in a year.
- 9. Spinning of a body on its axis.
- 12. Explosion of a large star at the end of its life.
- 14. Natural object that orbits a planet.
- 17. system The Sun and all objects that orbit it.
- 18. planets Planets closest to the Sun (Mercury, Venus, Earth, Mars).
- 19. Way The galaxy containing our solar system.
- 21. Giant ball of hot gas that produces light.