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"I need to fulfill life's one true purpose. To grow and spread, covering all that exists until everything is... me!"
Ego to Star-Lord[src]

Ego's Expansion was an attempt by the Celestial Ego to assimilate and conquer the universe.


"I was afraid it wouldn't take to the soil but it grew quickly and soon, it will be everywhere, all across the universe!"

Ego became convinced that he was the only last Celestial remaining in the cosmos, presuming his race as the cosmos' endangered species on the verge to extinction. Born bodiless and parentless shortly after the Universes' creations, Ego's origins remains mysterious and unknown by nature; Ego was born as a large brain-like resemblance stalling among the stars, granting sentience and sapience despite dwelling extreme loneliness. Developed, Ego molecularly constructed a shell to protect himself and then soon after time passes, Ego molecularly built an equivalent planet-shaped structure to further enhance his self-protection. Through eons, Ego remained conscious in solitude watching galactic civilizations rising and falling simultaneously regardless of living in immortality. Yet after bearing witnesses of death and decay among life in the cosmos, Ego eventually realized that all life other than Ego's life as an near-extinct Celestial was generally futile due to its ephemeral nature. Ego found the actual meaning of life: the proposal to assimilate all life in the cosmos and conquer the cosmos for himself.

In attempts to accomplish, Ego traveled among the stars to arrive on thousands of life-sustaining planets and implanted thousands of extraterrestrial seedlings (extensions of himself) on all planets he visited. Once the seedlings are all activated, massive blobs will burst from the planets' soils and initially consume all life-sustaining planets. However this strategy requires an immense amount of Celestial energy to unleash the activation since Ego cannot locate other Celestials' presence; although, he taken the most direct course of action to create a new race of Celestial hybrids by impregnating thousands of female extraterrestrial species of all life-sustaining planets in the cosmos. Ego hired Yondu Udonta and the Ravagers to deliver his offsprings. The majority of all Peter's unfortunately late biological siblings disinherited the required Celestial DNA for the expansion, meaning Ego killed thousands of children failing to inherit the Celestial genes until Ego's biological son, Peter Quill came along as Ego's first son to inherit the Celestial genes. Accompanied by the Guardians of the Galaxy, Quill settled in Ego's planet and later Ego deceived his son by draining Quill's Celestial DNA, flowing down below the planet surface as it was absorbed into Ego's brain, subsequently beginning Ego's terraforming expansion in the cosmos.


The Guardians of the Galaxy fought against Ego to prevent Ego from completing the expansion in the cosmos. To kill Ego, considering no other options to kill him, the Guardians have to travel further underground to find Ego's brain and destroy his brain. While Ego fought Peter Quill, who had at that stage reached a matching god-like status, Groot planted a nuclear bomb on the surface of the brain. Meanwhile, with every chance Ego got to absorb Quill's Celestial power, the planted seedlings expanded dramatically, consuming entire towns and all their constituent lifeforms. Yet the expansion was short-lasting, as Peter Quill stalled his father enough, so that the bomb placed on Ego's brain detonated, killing Ego. All of the expanding blobs in the cosmos ceased when Ego died.


To be added


  • In the comics, Ego attempted to assimilate and make part of himself the planet Earth in various occasion.


Wars and Conflicts in Earth History
First Dark Elf Conflict (Pre-2988 B.C - 2988 B.C.) • Ego's Expansion (Pre-1 A.D. - 2014) • Asgard-Jotunheim War (965 A.D. - 2010) • World War II (1939 - 1945) • Johann Fennhoff's Campaign (1946) • Cold War (1947 - 1991) • Chase of Bruce Banner (2005 - 2010) • Battle of Puente Antiguo (2010) • Aldrich Killian's War (2012) • Chitauri Invasion (2012) • Second Dark Elf Conflict (2013) • HYDRA Uprising (2014) • War on HYDRA (2014 - 2015) • S.H.I.E.L.D. Civil War (2014 - 2015) • Ultron Offensive (2015) • War against the Inhumans (2015) • Inhuman Outbreak (2015 - 2016) • Grant Ward's Campaign (2015 - 2016) • Avengers Civil War (2016) • Uprising in Attilan (2016) • Adrian Toomes' Campaign (2012 - 2016) • Attack on the Sanctums (2017)