1. God in reverse star
4. Closest orbit
5. No canals
6. Explores Saturn
9. light
10. Saturn's Earth like moon
12. Winter star
15. Virgin
16. First manned spacecraft on the moon
17. This planet has the blues
18. SciFi writer
Down
1. Blowed up real good
2. Gas giant
3. Mar's canyon -- Valles
6. Nebulae
7. Blue people live here
8. Tip of Orion
11. Seven sisters
13. Ringed planet
14. Mars valcanoe -- Olympus
15. A planet for lovers only