Across
- 3. the planet that has the most ring in the solar system
- 4. a celestial body that is outside the solar system
- 5. the biggest planet in the solar system
- 6. a celestial body that produces light
Down
- 1. a planet that doesn't abide the three rules to be classified as a planet exoplanets have an extra forth rule
- 2. a point in space in time where nothing can escape