Across
- 3. The moon and Earth formed at the same time from the same solar nebula
- 5. The light grey mountainous highlands
- 7. It is in a captured (synchronous) rotation so the same side faces the Earth
- 8. Km wide and hundreds of meters deep trenches
- 11. An early collision between the Earth and Theia formed the moon.
- 14. A rogue moon strayed to close and was caught by Earth's gravity
- 15. The lack of this element on the moon suggests the Earth was already layered when it formed
- 16. 200m high and 30km long peaks caused by cooling
- 17. A promitent impact
- 18. Orbit shape of planets and moons
Down
- 1. They are formed from impacts with asteroids
- 2. We actually see 59% of the moons near side due to this
- 4. The mountain range between Serenity and Tranquility
- 6. The early Earth span so rapidly the moon formed when part of it spun off
- 9. Get to 11.2km/s to reach this
- 10. The dark grey balastic lunar seas
- 12. The manned missions that got humans on the moon
- 13. The sky on the moon is not blue because there is no...