Across
- 4. person who is trained to travel in a space craft
- 8. biggest meteors shower of the year
- 10. volcanoe of mars
- 11. activity engaged inby an astronaut in space outside a spacecraft
Down
- 1. ice giant
- 2. giant andbiggest planet
- 3. with a biggest ring
- 5. rock or metal from space which hits the earth's surface
- 6. is a _______ planet
- 7. first dwaf planet visited by space craft
- 9. artificial body orbiting earth a moon or an another planet