The Moon is Earth's only natural satellite.
The flag of the Moon is a concept of a possible flag design, meant to symbolize the Moon or future human Lunar colonies.
Flag Proposals[]
Moon Society[]
The Moon Society, a non-profit organization dedicated to exploration of the Moon, introduced a flag in 2006 which is clearly derived from the Mars Society proposal for the flag of Mars (proposal by Pascal Lee) by replacing its red, green and blue colors with gray, blue and green, respectively. These colors symbolize the moon dust (gray), water (blue) and vegetation and biosphere (green).