[2] Desiring to bring order, peace and harmony to all the universe, they created a mechanized police force composed of powerful, self-aware androids known as Manhunters.

Survivors of the massacre of Sector 666 – beings labelled demons – banded together to form a nation called the Empire of Tears, which opposed the Guardians’ efforts and philosophy.

They succeeded in compacting much of the chaotic magic energy of the Cosmos and imprisoning it inside a star; part of it eventually escaped to become the Starheart used by Alan Scott.

Oa was itself destroyed in a battle between Parallax and Kyle Rayner, but rebuilt in the events of "Legacy" as the final wish of Hal Jordan's former power ring.

In the aftermath of the War, both Ganthet and Sayd have evolved into two new beings on a paradise-like planet Odym, where they are harnessing the blue energy spectrum of hope and creating blue power rings and batteries, planning to create another intergalactic police force to be able to aid the Guardians and the Green Lantern Corps against the Blackest Night.

[9] Scar killed one of her fellow guardians in the beginning of the Blackest Night, and is later revealed that she has since died after the Anti-Monitor's attack, and functions as an undead instead of an immortal.

With the ultimatum delivered by Larfleeze, the current wielder of the orange power of avarice, Scar proposed lifting the ban on the Vega System as well as having the Guardians leave Oa to get involved in the conflict personally.

[11][12] The Guardians accepted Scar's proposal and left Oa with Hal Jordan and the Green Lantern Corps to confront Larfleeze in the Vega System.

The Agent Orange later launched an attack on Odym, seeking to possess the powers of the Blue Lantern Corps, presumably being swayed by Scar.

[19] In the midst of the battle, Nekron killed a Guardian and Black Hand used his blood and organs to raise "The Trespasser" from the ground, holding a white figure.

This would involve them recovering the mysterious 'First Lantern' for an undefined role,[28] prompting Sinestro, who learned about this prophecy after touching the Book of the Black, to enlist Hal's aid in stopping this scheme.

[30] Furthermore, it was revealed that they were the masterminds behind the release of Abysmus, one of Atrocitus' early experiments at creating life by the use of necromancy and shamanic rituals, so he could try to destroy the Red Lantern Corps by poisoning their Central Power Battery.

[31] It is also speculated that they were the masterminds behind the release of Archangel Invictus from Larfleeze's prison and the fall of the Blue Lantern Corps during the Reach invasion in Odym.

[34] The Guardians begin an evil agenda, as they assign John to track down Mogo's dead remains, due to claims that they are moving and trying to reform it.

Kilowog then used his oath to cause the Central Power Battery to depower so that he could send distress calls to all the Green Lanterns and warn that the Guardians have turned against their own Corps.

When they are able to destroy the Third Army, Volthoom breaks free by taking the wounded Guardians' energy power and igniting the light, apparently resulting in the destruction of the universe.

It is revealed that when Krona tried to observe the beginnings of the universe, his experiment allowed a vessel to emerge on Oa where inside was a figure in a spacesuit with a bright lantern battery.

Calling himself Volthoom, this being had traveled across time and space and it was him who apparently tutored the Maltusians about the power of the Emotional Spectrum and at some point was given the name of The First Lantern.

However, during one of Krona's experiments involving the Great Heart, he witnessed the creation of The First Ring, which he attempted to claim for himself, only to be infused with the combined emotional awareness of the Maltusians themselves.

Thus, it was ultimately decided to imprison him within The Chamber of Shadows, a lantern shaped construct built near a black hole, where he was trapped inside for untold millennia.

[42] Because they are so out of touch with the current state of the universe, the Templar Guardians appoint Hal as a temporary leader of the Corps while they set out on a voyage of learning.

[43] Subsequently, in DC Rebirth, while the Green Lantern Corps returned, Ganthet, Sayd, and the Templar Guardians were attacked and abducted by the Controllers.

[48] Functionally immortal, Guardians resemble short (approximately 4 feet [120 cm] tall), large-headed, white-haired pale blue humans wearing red robes with their emblem, the Green Lantern symbol, on the chest.

In Green Lantern: Rebirth, Kyle Rayner is recorded saying that Ganthet could crack a planet in half with a thought and have been shown able to stagger Superman-Prime and the Anti-Monitor.

[49] The Guardians usually appear as diminutive, blue-skinned humanoids wearing red robes and white tabards bearing their crest, the Green Lantern symbol.

The known artifact are as follows: In the alternate reality of JLA: The Nail (where Superman was discovered by a different family after the Kents had a nail in their car tire on the day they would have recovered him), the Guardians recalled the entire Green Lantern Corps minus Hal Jordan (who was trapped on Earth by a Kryptonian force field) to intervene when the cold war between Apokolips and New Genesis escalated.

[61] In Year Two of the prequel comic to the game, Ganthet convinces the Guardians that Superman's recent actions on Earth to force peace border on tyranny, and suggests they intervene before it goes too far.

It is made impossible to reason with the fallen Man of Steel as he had discovered a truth behind the Guardians: years before they chose not to do anything as the planet Krypton exploded, allowing most of a race to be wiped out.

Hundreds of years later, pseudo-Lantern Hal Jordan rediscovered the lost Central Power Battery on Oa, now a mining planet at the heart of the Manhunter's empire.

The Guardians of the Universe appear in Green Lantern (2011), consisting of Ganthet, Sayd, Appa Ali Apsa, Scar, Raugniad, Nguanzo, Pazu, Basil, Baris, Herupa, and Krona.