Across
- 4. The phenomenon that occurs when a star explodes
- 6. The name of our galaxy
- 7. A small icy body in space, often with a tail
- 9. The closest star to earth
Down
- 1. A celestial body that orbits a planet
- 2. a region of space having a gravitational field so intense that no light or matter can escape.
- 3. This force keeps planets in orbit
- 5. Large, gaseous planet, the largest in our solar system
- 8. The red planet