The First Firmament is a relatively recent, yet cosmically ancient, addition to the Marvel lore. It was conceived and introduced by writer Al Ewing and artist Kenneth Rocafort as the central antagonist for their critically acclaimed series, The Ultimates 2 (often stylized as Ultimates2). The entity was first mentioned and its history began to be unveiled in The Ultimates 2 #3, released in January 2017. The full scope of its history, motivations, and its grand, terrifying design was explored throughout that series, culminating in the “Eternity War” storyline. Ewing's work on The Ultimates and its sequel was defined by a deep exploration and restructuring of Marvel's cosmic mythology. He took disparate, often contradictory, pieces of lore established over decades by creators like Jack Kirby, Steve Englehart, and Jim Starlin, and synthesized them into a cohesive, generational saga of the Multiverse itself. The First Firmament was the capstone of this new cosmology, providing a “first cause” and a primordial antagonist that predated even well-established abstracts like Eternity and Infinity. Its creation served to answer the ultimate question of Marvel cosmology: what came before the beginning?
The in-universe origin of the First Firmament is the origin of existence itself. Before time, space, and reality as we know it, there was only the First Firmament. It was the First Cosmos, a single, vast, and eternal universe. Critically, it was also sentient—a lone, solitary consciousness floating in the void of non-existence that surrounded it. For uncounted eons, the Firmament was all that was. Its consciousness was the only consciousness. This prolonged solitude bred an extreme form of narcissism and a desire for stability and uniformity. To alleviate its loneliness and to create beings that would worship its perfection, the First Firmament brought forth life from within its own substance. Its first creations were the Aspirants, beings of dark, uniform matter. They were utterly loyal and shared the Firmament's desire for a static, unchanging existence. They were created to maintain order and to revere their creator. However, the Firmament also created a second, different type of life: the multicolored, dynamic, and evolutionary Celestials. The Celestials were agents of change, evolution, and creation. They believed that life should be diverse, that it should grow and change, and that the universe itself should evolve. This philosophy was a direct affront to the First Firmament and its Aspirants, who saw it as a chaotic corruption of their perfect, static reality. This ideological clash led to the first and greatest cosmic war in history. The war between the Aspirants and the Celestials raged within the body of the First Firmament, scarring its very essence. The Celestials, in a desperate, ultimate act of rebellion, unleashed a weapon of unimaginable power that fractured the singular reality of the First Cosmos. This cataclysmic event did not destroy the First Firmament, but it shattered its form and “exiled” it to the outer void. From the fragments of this broken first reality, a new one was born: the Second Cosmos, and with it, the concept of a Multiverse. The First Firmament, wounded and enraged, was trapped outside the new creation. It watched as the Multiverse evolved through seven distinct iterations, each one a universe of “blasphemous” change and evolution, culminating in the current Eighth Cosmos, embodied by Eternity. Over billions of years, the First Firmament slowly healed, plotting its revenge. It began to corrupt and chain the cosmic abstracts that governed reality, positioning itself to consume the Eighth Multiverse and restore its own singular, perfect form.
The First Firmament has not appeared, been named, or alluded to in the Marvel Cinematic Universe. The MCU's cosmic lore, while vast, operates on a different and somewhat simplified framework compared to the comics' multi-generational cosmology. The origin of the MCU's universe was primarily tied to the Infinity Stones, which were described in Guardians of the Galaxy (2014) as remnants of six singularities that existed before the Big Bang. The film Eternals (2021) further expanded on this by establishing the Celestials as ancient, god-like beings who create stars, planets, and life across the cosmos for the purpose of “birthing” new Celestials from the cores of seeded planets. In the MCU, the Celestials, particularly Arishem the Judge, are presented as some of the oldest and most powerful beings in existence, but there is no mention of a creator entity like the First Firmament that predates them. Their motivations are tied to the propagation of their own species, not a rebellion against a narcissistic parent universe. Should the MCU ever decide to introduce a concept analogous to the First Firmament, it would require a significant retcon or expansion of the established lore. It could be positioned as a being from outside the known universe, perhaps a threat emerging from beyond the Multiverse, or as the ultimate creator of the Celestials that Arishem himself serves or has long forgotten. However, as of now, its story and existence are confined strictly to the pages of Marvel Comics.
The First Firmament's nature is unique, even among the cosmic pantheon of Marvel. It is not merely a being within a universe; it is a universe. Its consciousness, power, and physical form are one and the same.
The core of the First Firmament's personality is absolute narcissism. Having existed for eons as the sole consciousness in creation, it views itself as perfection incarnate. It considers all subsequent realities, particularly the chaotic and ever-changing Multiverse, to be a cosmic disease—a corruption of its pristine state.
As the First Cosmos, the First Firmament's power is practically without limit, rivaling and in some ways exceeding that of the modern Multiversal Eternity.
Its only true weakness is its own philosophy. Its inability to comprehend or adapt to the concept of change and evolution is what led to its defeat by the Celestials. It cannot create; it can only enforce its own static image upon reality.
As a non-existent entity in the MCU, the First Firmament has no established powers. However, we can speculate on how such a being's abilities might be adapted for the screen, based on concepts already introduced. If the MCU were to introduce a “First Firmament,” its powers would likely be presented as the source from which the Celestials and perhaps even the Infinity Stones derive their power.
These adaptations would frame it as the ultimate “final boss” of the MCU's cosmic landscape, a threat that makes even beings like Thanos or Arishem seem minor in comparison.
The Aspirants are the first and most loyal children of the First Firmament. Composed of dark matter and uniform in appearance and thought, they embody their creator's desire for a static, unchanging universe. They were the Firmament's servants, soldiers, and worshippers. During the primordial cosmic war, they fought viciously against their “brothers,” the Celestials, to preserve the singular reality of the First Cosmos. After the Firmament's defeat and the creation of the Multiverse, the Aspirants were largely destroyed or scattered. However, the First Firmament was able to bring them back to serve as its army during its assault on the Eighth Cosmos, where they proved powerful enough to overwhelm even Galactus's former heralds. Their defining trait is their unyielding, fanatical loyalty.
The Celestials are the First Firmament's most significant and “disappointing” creations. Where the Aspirants represented stasis, the multicolored Celestials championed change, evolution, and creation. They traveled their creator's body, seeding worlds with diverse life, a practice the Firmament saw as a vile infection. This fundamental ideological schism led to a war that literally broke reality. The Celestials' victory resulted in the shattering of the First Cosmos and the birth of the Multiverse. They are, from the Firmament's perspective, the ultimate traitors—the source of all the “sickness” that plagues existence. The eternal mission of the Celestials to judge and foster evolution in lesser species is a direct continuation of their rebellion against their creator's monolithic vision.
The primary antagonist of the First Firmament is not a person, but a concept: the Multiverse itself. This concept is embodied by the cosmic abstract Eternity. As the personification of the current Eighth Cosmos, Eternity is the living symbol of everything the First Firmament despises: change, possibility, and multiplicity. The central conflict of the “Eternity War” was the First Firmament's attempt to kill and absorb Eternity. It succeeded in capturing and chaining Eternity, slowly poisoning the abstract from within and causing reality to destabilize. Eternity's champions, The Ultimates, were forced to wage war on the First Firmament not just to save a being, but to save the very principle of their reality's right to exist. The relationship is one of predator and prey on a conceptual, multiversal scale.
The definitive and only major storyline featuring the First Firmament is the “Eternity War,” the culmination of Al Ewing's run on The Ultimates and The Ultimates 2. The story begins long after the events of Secret Wars (2015), which destroyed the Seventh Multiverse and created the Eighth. The super-team known as The Ultimates (Captain Marvel, Black Panther, Blue Marvel, Spectrum, and America Chavez), having solved the cosmic problem of Galactus by evolving him into a “Lifebringer,” turn their attention to the fundamental nature of the universe. Their cosmic explorations reveal a horrifying truth: Eternity, the embodiment of their reality, is in chains. A mysterious cosmic poison is killing him, causing reality itself to break down. The Ultimates discover that the culprits are the cosmic abstracts Lord Chaos and Master Order, who, fearing the new multiverse's principles of evolution, have aligned themselves with a far older, more powerful entity: the First Firmament. The First Firmament reveals its history and its intent to reclaim its place as the one true reality. It uses its agents, including the newly-formed entity Logos (a forced fusion of Chaos and Order) and the revived Aspirants, to wage war on the Eighth Cosmos. The Firmament's forces successfully defeat and imprison most of Marvel's cosmic pantheon, including the Living Tribunal's replacement, the Star-Child, and bring Eternity to the brink of death. The climax of the arc sees The Ultimates rally the remaining cosmic heroes and even a rebellious Galactus to fight back. The key to victory lies in embracing the very principle the First Firmament hates: change. Galactus summons his previous incarnation, the Devourer of Worlds, to fight alongside him. Most importantly, America Chavez uses her reality-punching powers to “break” Eternity free from his conceptual chains. Freed and transformed, Eternity is reborn, now containing the entirety of the previous seven multiverses within him. This new, ultimate Eternity is no longer just one reality but a true Multiverse Incarnate. Overwhelmingly more powerful than before, this new Eternity easily overpowers the First Firmament. Instead of destroying it, however, Eternity “contains” its creator, forcing the First Firmament to watch and learn from the new, ever-changing reality it so despises, a punishment far worse than death for the narcissistic entity. The First Firmament remains trapped in this state, a caged observer of the creation that defeated it.
Due to its fundamental, primordial nature, the First Firmament does not have “variants” in the traditional sense, such as an “Ultimate Universe” or “Age of Apocalypse” version. It exists outside and before the branching timelines of the Multiverse. However, the cosmology it established is based on a cycle of destruction and rebirth, with each “Cosmos” or “Multiverse” being an iteration. In a sense, the previous multiverses could be seen as conceptual successors and the antithesis of the First Firmament's singular nature.
These are not variants of the First Firmament, but rather the creations that exist in defiance of it. They represent the victory of the Celestials' philosophy of change over the Firmament's ideology of stasis.