Across
- 2. the only star in our solar system
- 5. the round object that moves around the earth
- 8. that can be done or might happan
- 10. a planet which is the farthest away from the sun
- 14. that cannot exist or to be done ,not possible
- 15. the smallest planet in the solar system and closest to the sun
- 18. the area outside the earth's atmosphere where all the other planets and stars are
- 19. any of the large systems of stars etc. in outer space
- 20. the second biggest planet with rings
Down
- 1. to be the first person to become aware that a place or thing exists,to find out sth. new
- 3. the whole space and everything in it
- 4. the planet between Earth and Jupiter
- 6. the second planet in order of distance from the sun
- 7. the biggest planet in the solar system, with a big red spot
- 9. a large ball of burning gas in space that we see as a point of light in the sky at night
- 11. of or connected with the sun
- 12. a group of things that are connected or work together
- 13. a large round object in space that moves around the sun
- 16. the planet we live on
- 17. a gas planet which rotates differently