Across
- 2. Massive groups of billions of stars, along with gas, dust, and dark matter.
- 4. The largest planet of our solar system.
- 5. Called the "Red Planet" (due to iron oxide or rust)
- 7. Huge balls of hot glowing gas (mostly hydrogen).
- 8. Furthest planet from the Sun.
- 10. The closest planet to the Sun and the smallest of our solar system
Down
- 1. Spins on its side and it's very cold and windy.
- 3. The hottest planet of our solar system.
- 6. Famous for its beautiful rings
- 7. Source of light and heat for all planets ( the center of our solar system)
- 9. The only planet known to support life