Across
- 2. Planet with the most moons
- 4. System consisting of a large number of stars bound together by gravity
- 6. Celestial body made ice and rock that orbits the Sun
- 7. Huge explosion caused when a star collapses
- 9. Path objects take around a star or planet
- 10. When one celestial body blocks the light of the Sun from another
- 11. Way Earth's galaxy
Down
- 1. largest planet in our Solar System
- 3. Instrument used to view objects in outer space
- 5. Person who is trained to travel outer space
- 8. Group of stars that form a pattern in the sky