Flag of Earth

A flag of Earth is a flag used to represent Earth. Although no flag has received any "official recognition" by any governmental body, some individuals and organizations have promoted designs for a flag. The most widely recognized flags associated with Earth are the flag of the United Nations and the Earth Day flag. Listed below are some of the unofficial contenders for a Flag of Earth.

A flag designed by John McConnell in 1969 for the first Earth Day is a dark blue field charged with The Blue Marble, a famous NASA photo of the Earth as seen from outer space. The first edition of McConnell's flag used screen-printing and used different colors: ocean and land were white and the clouds were blue. McConnell presented his flag to the United Nations as a symbol for consideration.

Because of the political views of its creator and its having become a symbol of Earth Day, the flag is associated with environmental awareness, and the celebration of the global community. It was offered for sale originally in the Whole Earth Catalog, and is the only flag which was endorsed by McConnell.

The Blue Marble image was placed in the public domain, and the public nature of this image was the basis of a legal battle that resulted in the invalidation of a trademark and copyright that was originally issued to the Earth Day flag through its original promotional entity, World Equity, Inc. This does not invalidate the official history of McConnell's flag, only the official patent that was issued on it.

The One Flag in Space initiative is an offshoot of the Space Generation Congress (SGC), the Space Generation Advisory Council's yearly world meeting. It promotes usage of the Blue Marble flag for space exploration (it does not explicitly mention it being McConnell's design).

Adopted in 1946, the flag of the United Nations has been used to indicate world unity, although it technically only represents the United Nations itself. It has a geographical representation of the planet, and its high visibility usage makes it a well-known contender for representing Earth. During the planning for NASA's moon landings of the 1960s, it was suggested that a UN flag be used in place of the flag of the U.S.

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