Across
- 2. Go up
- 4. Almost exact or correct
- 6. A moon in orbit round a planet
- 9. A complete failure, sometimes with tragic results
- 10. The outside of something
- 13. Ten years
- 15. A journey of discovery
- 16. Looked at something steadily
- 18. A person who travels in space
Down
- 1. An aeroplane, glider or helicopter
- 3. The curved path taken by something moving round a planet
- 5. An elected leader of a country
- 7. Sent a ship from land into space
- 8. A very sad event
- 11. Made or became bigger or better
- 12. A black substance made by burning wood
- 14. A detailed examination of something
- 17. A task or activity that is new and difficult