Marvel finally introduced adamantium to the MCU in Captain America: Brave New World, but I think the powerful metal was actually already teased.

Eternals might be a lesser MCU movie, but its conclusion—in which the Celestial Tiamut begins to hatch from the Earth—should have had larger ramifications in the rest of the Universe.

Brave New World managed to answer one big MCU mystery, but simultaneously set up another that will be trickier to answer.

“Captain America: Brave New World” even features the return of Tiamut the Celestial from the 2021 MCU entry “Eternals.” It’s the first time we’ve seen another “Eternals” character ...

The 2021 film Eternals revealed Earth to essentially be a giant egg for a colossal Celestial being known as Tiamut. If the cosmic entity were to hatch, the planet would be destroyed. To save the globe ...