There is a planet that is orbiting around not a single star, but the core of a galaxy. It is independent of the other solar systems in the galaxy, but is affected by the center of mass of the core. It is orbiting very near the speed of light. It does have a clean orbit, meaning, it does not collide with any other planets or stars in the galaxy while it’s orbiting around the core.
It is very difficult to land a spacecraft on this planet as only a few civilizations in the galaxy can approach a significant fraction of the speed of light, therefore only the most advanced ones can come close to the planet and land on it.
The question is: would it be worth it to colonize this planet for any reason? Politically, economically or from a military standpoint? Or use it as a treasury, or anything? Would we have any use for it? Would it be worth any investment?
(The technology to live in very cold places, far from stars is already developed and established, so even if this planet does not have an atmosphere and very cold, cities could be build on it which can support life with existing technology)