On the day of the launch, Jerome reveals that he has stored enough DNA samples for Vincent to last two lifetimes upon his return, and gives him an envelope to open once in flight. After saying goodbye to Irene, Vincent prepares to board but discovers there is a final genetic test, and he currently lacks any of Jerome's samples. He is surprised when Dr. Lamar, the person in charge of background checks, reveals that he knows Vincent has been posing as a valid. Lamar admits that his son looks up to Vincent and wonders whether his son, genetically selected but "not all that they promised", could exceed his potential just as Vincent has. The doctor changes the test results, allowing Vincent to pass. As the rocket launches, Jerome dons his swimming medal and immolates himself in his home's incinerator; Vincent opens the note from Jerome to find only a lock of Jerome's hair. As the movie ends, Vincent muses that "For someone who was never meant for this world, I must confess, I'm suddenly having a hard time leaving it. Of course, they say every atom in our bodies was once a part of a star. Maybe I'm not leaving; maybe I'm going home."