Across
- 5. Natural satellite that orbits a planet.
- 8. Force that keeps planets in orbit around the sun.
- 10. A spacecraft that carries astronauts to space.
- 11. Study of celestial objects and phenomena.
- 12. Small, rocky celestial body that orbits the sun.
Down
- 1. An artificial body placed in orbit around a planet.
- 2. A galaxy that contains our solar system.
- 3. Phenomenon that occurs during a solar eclipse.
- 4. Path an object takes as it revolves around another in space.
- 6. Third planet from the sun.
- 7. Giant ball of gas in space.
- 9. Optical instrument used to observe distant objects.