Across
- 1. an act of travelling from one place or a trip.
- 4. a person who goes into space.
- 8. a large round object that goes around a star.
- 9. System our sun and the planets that orbit it.
- 10. a large group of stars held together by gravitational forces.
- 13. the quality of being or coming from outer space.
- 15. a polite way to argue about something.
- 16. to look for something.
- 17. a projectile or object that can go to great heights using combustion.
Down
- 2. all of space and everything in it.
- 3. facts and numbers that give information about something.
- 5. a vehicle that travels in space.
- 6. to talk to people.
- 7. to go around something in a circular or curved path.
- 11. that is outside of the Earth and other celestial bodies.
- 12. an object made of ice, gas and dust that goes through space.
- 14. the air and other gases that surround the Earth.