Across
- 2. the closest planet to the Sun.
- 3. a mass of rock that moves around in space.
- 5. second largest planet in our solar system.
- 6. a spiral galaxy where our Solar System and Earth are located.
- 7. second closest planet to the Sun.
- 10. a shooting star.
- 12. eighth planet from the Sun.
- 14. the planet on which we live.
Down
- 1. largest planet in our solar system.
- 2. an object that goes round another planet.
- 3. a person who is specially trained to travel into outer space.
- 4. an area so strong that light and everything else around it is pulled into it
- 8. small bright light in the sky at night.
- 9. a very small star that does not shine brightly.
- 11. object that moves around the Sun.
- 13. or the 'Red Planet'.