Redittor thefrek has designed a kick-ass series of flags for the Solar System and its planets. But flags, as we all know, change over time. So he's also created possible revisions for those flags reaching as far as 800 years into the future.
Below you'll find thefrek's concept designs for "Earth/Solar flags throughout the future," but we highly recommend checking out the banners he envisioned for each individual planet, and especially this batch of future-flags from a Martian Revolution, when the Red Planet "declares itself to be the dominant force in the Solar System, and claims all other planets as part of its empire."
Yes, we realize he included Pluto in the Solar designs. "Who knows," he says, "in the future we might decide [it's a planet] again... and then in 2355 apparently we decide it isn't anymore... and then later we decide it is again!"
...But if you absolutely have to have a version sans Pluto, acet1 has got you covered.
[All captions by thefrek]
2020: Humanity is only present on Earth and the Moon.
2044: Humans have settlements on Earth, the Moon, Mars and its moons, and Ceres.
2087:Two more objects in the Asteroid Belt have been colonized as well as Europa and Venus.
2204: Humans have settled on every large body in the Solar System. Terraforming is well underway on most planets, and interstellar voyages are beginning.
2355: Another star system is incorporated into the Solar Federation.
2412: Another system has been conquered.
2484: The Solar Federation now has too many systems to show them on the flag - Each circle represents one star system, with the Solar System in the centre.
2514: Yet more systems are being settled.
2544: Expansion is occurring at a breakneck pace.
2639: Several different alien races now exist within the Solar Federation, co-existing peacefully with humanity.
2812: 800 years into the future, the Solar Federation is the leading force in the galaxy, with all denizens of our galaxy being given equal representation. Humanity has taken the responsibility to ensure peace and prosperity everywhere in the Milky Way.