The Federated Nations – successor to the United Nations – use this flag:
To be fair, I just threw something together; I did not really assign any meaning to the symbols. I did want to remove some of the clutter from the globe, and I think that works nicely. I also prefer a deep blue to the old UN light blue, it’s a nicer, fuller color this way, giving the flag more “presence”.
But if anybody has a good suggestion on what the stars could stand for – let me know. I thought about continents, or planets in the solar system – I could change the number of stars after all – but neither sounds overly compelling.