Across
- 3. Known for it's iconic rings.
- 8. A person who studies celestial objects and phenomena.
- 10. Galaxy, which contains over 100 billion stars.
- 11. A star, planet, or other natural object in space.
- 13. A system of organizing time based on the cycles of the sun and moon.
- 14. A group of planets that circle one or more stars.
Down
- 1. Gas giant planet with the largest number of moons in our solar system.
- 2. Fourth planet from the sun.
- 4. An instrument used to observe distant objects in space.
- 5. A region in space with a gravitational pull so strong that nothing can escape it.
- 6. Second planet from the sun.
- 7. A group of stars that form a pattern in the night sky.
- 9. A massive system of stars, gas, and dust held together by gravity.
- 12. Planet known to support life.
- 15. Emits their own light and heat.