| Answer | Crossword Clue |
|---|---|
| MARE | Dark moon plain |
| MARE | Dark plain on the moon |
| MARE | ... Humorum, dark plain on the moon |
| sinus | (Bay of Rainbows) a semicircular dark plain in the second quadrant of the face of the moon |
| MARE | Moon plain |
| METON | Moon plain |
| ELGER | Plain on the moon |
| MARE | Plain on the moon |
| SEA | Large plain on the moon |
| GODIN | Walled plain on the moon |
| schiller | elliptical walled plain in the third quadrant of the face of the moon: about 112 miles (180 km) in length and 60 miles (100 km) in width |
