Across
- 2. a dwarf planet
- 5. how the sun makes energy
- 6. where the gas giant planets orbit
- 10. a large lump of space rock that orbits the middle of the solar system
- 12. where the rocky planets orbit
- 15. a cosmic rock burning through the atmosphere of earth
Down
- 1. how long it takes for light to reach us from the sun
- 3. a cosmic cloud of gas and dust
- 4. the speed of light
- 7. contains the sun, planets, asteroids and comets
- 8. the largest gas giant planet
- 9. an angle measured to find how far away a star is
- 11. a not very good method for finding out how far away a star is
- 13. the remains of a cosmic rock that lands on the surface of the earth.
- 14. made of ice and orbits far away from the sun