Across
- 3. Improved the telescope and demonstrated Copernican theory
- 4. A group of stars that form a shape or pattern
- 5. Space station owned by the USA, Russia, Japan, Canada and Europe (abbr.)
- 6. In which the sun is obscured by the moon (2 words)
- 8. Name of the probe that has almost left our solar system
- 11. Second full moon of the month (2 words)
- 12. The Moon's gravitational pull on the Earth causes these
- 13. Missions that put man on the moon
- 15. Process by which a planet is transformed so as to resemble the Earth
- 17. Amount of phases the Moon has
Down
- 1. German astronomer who discovered the laws of orbital motion
- 2. Probes sent to study Mars
- 3. A period of rotation synchronous with that of the Earth's rotation
- 7. tilt A deviation from a vertical or horizontal line, plane, position or direction
- 9. Artificial body placed in orbit around the Earth or another planet
- 10. Canada's space agency (abbr.)
- 14. Unmanned exploratory spacecraft designed to transit information about its environment
- 16. Number of the first mission to put man on the moon