Related Clues:

• ___ eclipse
• The 'M' of NASA's LEM
• Type of module or orbit
• Regarding the moon
• Unit of a study course
• Eclipse descriptor
• The kind of eclipse that is always safe to look at
• The 'M' in LEM
• The "M" in LEM
• Deliver an ultimatum about hiding part of the moon
• Like some craters
• Like the Javanese calendar
• Apollo's __ excursion module
• ___ Reconnaissance Orbiter (NASA launch of 2009)
• Spacecraft unit