Across
- 6. The force that pulls objects towards each other
- 8. The scientific study of space and celestial objects
- 9. An oval-shaped path or form
- 10. When one space object blocks the light of another
- 13. The distance light travels in one year
Down
- 1. All of space, time, matter and energy that exists
- 2. A massive system of stars, gas and dust held together by gravity
- 3. The most common element and the main fuel for stars
- 4. A group of related parts, working together, like the Solar System
- 5. A drawing that shows objects at a proportional size
- 7. The path an object takes around a star, object or moon
- 11. A predictable or repeating arrangement
- 12. A small rocky object that orbits the Sun