Across
- 1. A group of millions of stars
- 3. A dwarf planet
- 5. A galaxy
- 8. A shooting star
- 10. No moons
- 13. Planet with life
- 14. A day longer than a year
- 15. Huge heat source
Down
- 2. A lump of rock or metal that moves around the sun
- 4. The flattest planet
- 6. A huge ball of gas, the sun is one
- 7. We have eight of them
- 8. Tallest mountain on a planet
- 9. A very stormy/cold planet
- 11. When the moon and sun a line
- 12. A ball of ice and dust