How MCU Starfox Can Be One Of The Eternals And Thanos’ Brother

Eternals introduced a whole new group to the Marvel Cinematic Universe, as well as the character of Eros aka Starfox (Harry Styles), who is both an Eternal and the brother of Thanos – but Marvel didn’t explain how that’s possible. In the Eternals movie it’s established that the group were created by the Celestial Arishem, but it’s not revealed until later in the film that they’re synthetic beings who Arishem programmed not to evolve. The question of whether Eternals can reproduce isn’t addressed in the MCU movie, though star Salma Hayek did say in an interview her character Ajak, “can’t have kids.”