Complex sentence: After a few years, the resident scientists noticed that their radiation was going out of control, so with their consent, the government imprisoned Thomas and Dunbar in a radiation-proof bunker, separated from each other and society, their aging processes halted.
Split into simpler sentences: After a few years, the resident scientists noticed that their radiation levels were going out of control, so with their consent, the government imprisoned Thomas and Dunbar in a radiation-proof bunker. Separated from each other and society, their aging processes halted.