Across
- 3. An important official task for a person or group
- 6. Lasting for a very long time or forever
- 8. An expensive non-essential thing for pleasure
- 11. /ˌreɪdiˈeɪʃn/
- 12. Time when one is not working or busy
- 13. All of space and everything in it
- 15. Able to be seen with the eyes
- 16. Path of an object moving around another in space
Down
- 1. Conditions in which something happens
- 2. Process of keeping something in good condition
- 4. The state of being away from a usual place
- 5. A living thing, especially an animal
- 7. a person traveling and working in a spacecraft
- 9. To judge the quality, usefulness or success of something
- 10. Force pulling objects toward a planet’s center
- 14. Extremely important for success or survival