Our future superheroes were living in a crowded college dorm on the planet PSR B1620-26b. In this novel I have relocated it to the spiral arm opposite of ours for the sake of convenience. This is fiction so I can do that if I want.
Their ages ranged around 18 or 19 Earth years I guess. They were all studying geology and mining-related subjects so they could easily get a job on one of the many the excavation ships cruising about the Universe. A most boring and mind-numbing job but the pay was good and the jobs were plenty. Employees tended to retire early because of all the time spent away from home.
So this is their lot at the moment.