The week of December 13-19 takes us from Day 10 to Day 16. This week we will highlight Sinus Iridum, located in the northwest sector of Mare Imbrium. Sinus Iridum: [NW/E6] Sinus Iridum (the Bay of Rainbows) formed after the
Sinus Iridum on the Moon: The Bay of Rainbows
