Across
- 2. A rocky object that orbits the Sun, mostly found between Mars and Jupiter.
- 4. An early model of the universe that placed Earth at the center.
- 5. A system consisting of the Sun and all objects that orbit it due to gravity.
- 6. All space, matter, and energy that exists, including galaxies, stars, and planets.
- 9. The region around a star where conditions may allow liquid water to exist.
Down
- 1. A force of attraction between objects with mass that pulls them toward each other.
- 3. An icy object that orbits the Sun and forms a glowing tail when near the Sun.
- 5. A natural or manmade object that orbits a planet or larger body.
- 7. The curved path an object follows as it moves around another object due to gravity.
- 8. A model of the solar system that places the Sun at the center with planets orbiting it.