Doctor Timicin designed an experimental process to revitalize his world's dying sun, and tested it with the assistance of the USS Enterprise-D in 2367. While aboard the Enterprise, he met Betazoid Ambassador Lwaxana Troi, and the two began a romantic relationship.
After the failure of Timicin's experiment, he was to return to Kaelon II and take part in a cultural rite called "the Resolution", in which Kaelons commit suicide at age sixty. Lwaxana Troi convinced him to seek asylum and avoid this ritual; however, his daughter Dara was able to change his mind and convince him of the importance of their traditions. In the end, Timicin submitted to the Resolution, with Troi accompanying him. (TNG episode: "Half a Life")