| Answer | Crossword Clue |
|---|---|
| MARE | ... Humorum, dark plain on the moon |
| MARE | Dark plain on the moon |
| sinus | (Bay of Rainbows) a semicircular dark plain in the second quadrant of the face of the moon |
| MARE | Plain on the moon |
| ELGER | Plain on the moon |
| SEA | Large plain on the moon |
| GODIN | Walled plain on the moon |
