Across
- 3. / a person who is trained to travel in a spacecraft
- 4. / systems of millions or billions of stars, together with gas and dust, held by gravitational attraction
- 5. / set in motion; started
- 7. / convert to automatic operation; operated by machines
- 14. / sticking out; projecting
- 15. / in a way that accomplishes a desired aim or result
- 17. / to develop gradually, especially from a simple to a more complex form, develop
- 18. / having a special activity, purpose, or task; designed to be practical and useful
- 19. / fly or move around something in a circle
- 20. / a base from which spacecraft are launched
Down
- 1. / forming or viewed as a unit apart or by itself, unrelated,different
- 2. / an artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication
- 6. / the amount of goods or people that a vehicle, such as a truck or aircraft, can carry
- 8. / the process of broadcasting something by radio, television, etc.
- 9. / important assignments carried out for political, religious, or commercial purposes, typically involving travel, expeditions,trips
- 10. / an instance of one moving object or person striking violently against another; crash
- 11. / a vehicle used for traveling in space
- 12. / showing a continuous and dramatic increase
- 13. / a person or thing that protects someone or something, defender
- 16. / an optical instrument designed to make distant objects appear nearer