This was found at "Once in a blue moon" (General Moon FAQ)
by James Bron - ogametips.com.
Empty (0/1 fields used)
Lunar Base 1 (1/4 fields used)
Robotics Factory 1 (2/4 fields used)
Robotics Factory 2 (3/4 fields used)
Lunar Base 2 (4/7 fields used)
Robotics Factory 3 (5/7 fields used)
Robotics Factory 4 (6/7 fields used)
Lunar Base 3 (7/10 fields used)
Robotics Factory 5 (8/10 fields used)
Robotics Factory 6 (9/10 fields used)
Lunar Base 4 (10/13 fields used)
Robotics Factory 7 (11/13 fields used)
Sensor Phalanx 1 (12/13 fields used)
Lunar Base 5 (13/16 fields used)
Sensor Phalanx 2 (14/16 fields used)
Sensor Phalanx 3 (15/16 fields used)
Lunar Base 6 (16/19 fields used)
Sensor Phalanx 4 (17/19 fields used)
Sensor Phalanx 5 (18/19 fields used)
Lunar Base 7 (19/22 fields used)
Sensor Phalanx 6 (20/22 fields used)
Sensor Phalanx 7 (21/22 fields used)
Jumpgate (22/22 fields used)