Across
- 2. A natural satellite that orbits a planet.
- 6. An object that orbits a planet or star.
- 8. A force that attracts objects with mass.
- 9. An element formed during nuclear fusion in stars.
- 10. A large body orbiting a star.
Down
- 1. All space, time, matter, and energy that exists.
- 3. The path of an object as it revolves around another.
- 4. A ball of hot gas undergoing nuclear fusion.
- 5. A massive group of stars, dust, and gas.
- 7. The distance light travels in one year.