The For All Mankind Season 5 finale ends with a shocking death, as Kelly Baldwin sacrifices herself to find life on Titan, a moment that has been set up for quite some time. Kelly's death is even more shocking than Ed's in the series, and it's a deeply emotional and surprising moment. The creators had been setting up for Kelly's death from the very beginning, and it's a way for her to carry on her father's legacy and teach her son Alex one final lesson.