Across
- 2. a HUGE collection of stars and planets
- 4. gases surrounding a celestial body
- 5. 7th planet from the sun, coldest planet
- 6. first country in space
- 8. hottest planet in the solar system
- 10. explosion of a star
- 13. first country to land on the moon
- 15. controls Earth's gravity
- 17. a hot ball of gas shines brightly
- 19. planet with rings around it
- 22. small rocky object orbiting the sun
- 24. person who travels in space
- 25. object made of ice and dust which leaves a trail
- 26. elliptical path of a celestial body
- 27. planet that humans live on
Down
- 1. force that keeps things grounded on earth
- 3. cloud of dust or gas found between stars
- 6. robot used to collect samples on mars
- 7. takes up a large part of our solar system, very hot!
- 9. machine designed to fly in outerspace
- 11. a body orbiting a star
- 12. event in which an object is temporarily obscured
- 13. expert who studies celestial objects
- 14. dwarf planet in our solar system
- 15. galaxy that we live in
- 16. manmade object placed into orbit
- 18. largest planet in the solar system
- 20. farthest planet from the sun
- 21. closest planet to the sun
- 23. most explored planet, the red planet