Across
- 3. A piece of space rock that burns up in Earth's atmosphere
- 4. A huge grouping of stars
- 5. A vehicle designed for travel in space
- 10. Has rings made of ice and dust
- 11. The largest planet in our solar system
- 12. The path an object takes around another
- 18. The seventh planet from the sun
- 19. An instrument used to observe distant objects in space
- 20. A person who travels in space
Down
- 1. A celestial object with a tail
- 2. The Red Planet
- 6. A group of stars that form a pattern
- 7. An object that orbits a planet
- 8. The center of our solar system
- 9. Earth's natural satellite
- 13. A cloud of gas and dust in space
- 14. An explosion that occurs when a star runs out of fuel
- 15. hole An object with such strong gravity that nothing can escape it
- 16. A space telescope named after astronomer Edwin Hubble
- 17. The hottest planet in our solar system