Across
- 6. tool used to observe stars and planets
- 7. SYSTEM the Sun and all objects that orbit it
- 8. the path an object takes around another object
- 9. oval-shaped path of an orbit
- 10. everything that exists including space and time
- 11. huge system of stars, gas and dust
- 12. rocky object orbiting the Sun
Down
- 1. when one object blocks the light of another
- 2. study of space and celestial objects
- 3. large body that orbits a star
- 4. icy object with a glowing tail
- 5. person trained to travel in space