The cosmic side of the Marvel Universe was born from the boundless imagination of writer-editor stan_lee and, most critically, artist-plotter jack_kirby. Their groundbreaking work on fantastic_four in the mid-1960s began to push the boundaries of superhero fiction beyond street-level crime and Cold War paranoia. The true genesis of Marvel's cosmic lore arrived in Fantastic Four #48 (March 1966) with “The Coming of Galactus.” This storyline introduced not only the planet-devouring galactus but also his conflicted herald, the silver_surfer, and the impossibly powerful, non-interfering Uatu the Watcher.
Kirby's signature art style—characterized by crackling “Kirby Krackle,” massive and intricate machinery, and awe-inspiring character designs—was perfectly suited to depicting beings of unimaginable power. He and Lee established the core tenets: that the universe was ancient, filled with wonders and terrors, and that humanity was but a tiny, albeit significant, part of a much larger cosmic tapestry. This foundation was expanded upon by creators like Jim Starlin, whose “Thanos Saga” in the 1970s and the seminal The Infinity Gauntlet event in 1991 further defined the abstract entities like Eternity and Death, cementing the cosmic hierarchy that remains central to Marvel lore today.
The creation of the Marvel Multiverse and its cosmic inhabitants is a story told and retold, with details added and retconned over decades. The comic and MCU origins, while sharing conceptual DNA, are fundamentally different in their scope and execution.
The most current and accepted origin begins before the beginning. Initially, there was only a single, sentient universe: The First Firmament. It was alone and desired only stasis. However, its own creations, the colorful and dynamic “Celestials,” yearned for evolution and change. This ideological conflict sparked a cosmic civil war. The Celestials' desire for a dynamic, evolving reality led them to shatter the First Firmament. From these broken shards, the Second Cosmos and the concept of the Multiverse were born. It was in this new reality that the four primary abstract entities came into being as siblings, representing the core pillars of existence:
This “cosmic quartet” formed the foundation of reality. As the universe aged, other beings emerged to fulfill specific functions. The celestials became cosmic “gardeners,” traveling the cosmos to experiment on nascent life forms, leading to the creation of races like the Eternals and Deviants on countless worlds, including Earth. Beings like Galactus, a survivor of the previous universe, were transformed into a force of cosmic balance, a necessary predator to keep the universe's expansion in check. Overseeing it all is the Living Tribunal, a multiversal judge with three faces representing Equity, Necessity, and Vengeance, whose sole purpose is to safeguard the Multiverse from catastrophic imbalance. This intricate, layered history forms a complex ecosystem of power, purpose, and cosmic destiny.
The MCU's cosmic origin story is far more streamlined, designed for narrative clarity in film. As explained by The Collector in Guardians of the Galaxy and Wong in Avengers: Infinity War, before creation itself, there were six singularities. Following the Big Bang, these singularities were forged into concentrated ingots: the infinity_stones.
These stones represent the fundamental forces of the MCU's universe. In this version, the Cosmic Beings are not necessarily the source of these forces, but rather ancient participants or products of them.
The celestials are presented as the primary architects of life in the universe. As revealed in Eternals, these colossal, armored beings “seed” planets with life, using the energy from the planet's eventual sentient population to birth a new Celestial from the planet's core—a process that destroys the host world. They are presented as unimaginably ancient and powerful, responsible for creating galaxies and stars.
Other entities have been slowly introduced. Eternity, depicted in Thor: Love and Thunder, is not the living universe itself, but a powerful being residing at the “Center of the Universe” who grants a single wish to the first being to reach it. The Living Tribunal made a fleeting cameo as a statue in Doctor Strange in the Multiverse of Madness, confirming its existence but leaving its role undefined. The MCU's hierarchy is thus far simpler: the Infinity Stones were the beginning, the Celestials were the first great powers, and other, even more powerful beings like Eternity exist in realms beyond normal comprehension.
The power of Marvel's Cosmic Beings can be best understood through a tiered system. This is not an official, rigid classification but a framework widely accepted by fans and supported by decades of comic book evidence. It is crucial to analyze the comic and MCU versions separately, as their power levels and roles often differ dramatically.
At the absolute apex of all existence in all realities sits The One-Above-All.
These beings operate on a multiversal scale, their existence safeguarding or defining all realities.
Secret Wars event, an act that demonstrated the Beyonders' immense threat.These are beings with incredible power who fulfill a specific, fundamental purpose within a single universe.
Dark Phoenix. It has not been introduced into the mainstream MCU continuity.These beings wield incredible power, often in service to a higher concept or a personal mission.
Guardians of the Galaxy Vol. 2 as an audience for their informant, Stan Lee. A powerful variant Watcher, named Uatu, is the narrator and central character of the animated series What If…?, where he eventually breaks his oath to fight an Infinity Stone-powered Ultron.The relationships between Cosmic Beings are not defined by friendship or petty squabbles, but by fundamental opposition and necessary partnership. Their conflicts are fought on a conceptual level, with entire galaxies as their chessboard.
In the comics, the entities known as Master Order and Lord Chaos represent the eternal struggle between structure and entropy. They are cosmic twins who cannot exist without each other. Their endless conflict is mediated by their “offspring,” the In-Betweener, a being who embodies the synthesis of all dualities: life and death, good and evil, order and chaos. This triumvirate often seeks to manipulate events and lesser beings to tip the scales in their favor, believing that a perfect balance is required for the universe to function. Their machinations have driven several major storylines, particularly in the adventures of Doctor Strange and Adam Warlock.
The most prominent example of this dynamic is the relationship between Galactus and the Celestials. The Celestials are cosmic gardeners, seeding life throughout the universe. Galactus is the harvester, culling worlds to prevent the universe from becoming overrun with life, an act described as an “antidote to the Celestials' poison.” This places them in natural opposition. Similarly, the Phoenix Force embodies this duality within itself. As the nexus of all life yet to be born, it represents creation and rebirth, but as the “judgment of the Phoenix,” it can purge entire timelines and burn away what it deems to be stagnant, embodying fiery destruction.
A recurring theme in Marvel's cosmic saga is the judgment of humanity and other mortal races by higher powers.
The true scope of the Cosmic Beings is best understood through the universe-shattering events they have participated in.
This is the foundational text of cosmic Marvel. Uatu the Watcher breaks his oath to warn the Fantastic Four of the arrival of Galactus, the Devourer of Worlds. The story establishes the sheer scale of these new threats. Galactus is not a villain to be punched; he is a force of nature to be outsmarted. The heroes' victory comes not from overpowering him, but from the Silver Surfer's rebellion and Reed Richards threatening him with the Ultimate Nullifier, a weapon of cosmic-level destruction. This story set the tone for all cosmic encounters to follow.
The definitive cosmic event. Seeking to win the affection of Mistress Death, Thanos of Titan assembles the six Infinity Gems, granting him omnipotence. He snaps his fingers, erasing half of all life in the universe. This act draws the attention of the entire cosmic hierarchy. Earth's surviving heroes launch a desperate assault, but the real battle is fought by the cosmic pantheon. Eternity itself manifests to challenge Thanos, and the Living Tribunal is prepared to intervene. The storyline is a masterclass in showcasing the cosmic pecking order, as even beings like Celestials and Galactus are humbled by the power of a fully-loaded Infinity Gauntlet.
This modern epic revitalized Marvel's cosmic characters. Annihilus, lord of the Negative Zone, launches his “Annihilation Wave” into the positive-matter universe, seeking to extinguish all life. The event is notable for focusing not on the abstract entities, but on the “mid-tier” cosmic players. Nova (Richard Rider) becomes a one-man army, the Silver Surfer rejoins Galactus as his herald, and forgotten characters are thrust into the spotlight. It demonstrated that cosmic stories could be gritty, militaristic, and character-driven while still retaining universe-ending stakes, as Galactus and his former heralds are unleashed as a weapon of mass destruction against the wave.
Eternals film.The Infinity Gauntlet, but Marvel editorial insisted that Adam Warlock be the one to do it.Eternals, particularly Arishem, is heavily influenced by their earliest designs from Jack Kirby's original Eternals comic series in the 1970s.Ultimates series, providing a modern, grander origin story for the entire Marvel Multiverse.