Nub Saar was the first floating city built on the gas world of Genarius. Unfortunately, Nub Saar had not been built to withstand the harsh radiation storms of Genarius. All the original 4,500 settlers got radiation sickness from the first storm to hit the city. Some 2,500 left after that. Seventeen workers of the remaining 2,000 died after the next, half-hour storm hit, after which another thousand workers left. Only the skeletal remains of the city remained after a more potent storm hit the city and the remaining thousand workers were presumed dead.
The city was operative only for four months since its founding.
The skeleton of Nub Saar was left floating as a mute reminder of what could happen to any city of the planet, if not suitably prepared.