Created by John Broome and Gil Kane

The Original Universe


Name: Oa
Space Sector: 0
Sun(s): Sto-Oa
Moon(s): White Moon of Oa
Dominant Lifeform: Oans
Points of Interest: (see below)
Prominent Inhabitants: Green Lantern Corps; Salakk; Kyle Rayner; Guy Gardner; Greet; Guardians of the Universe
First Appearance: Green Lantern Vol. 2 #1 (July-August 1960) "The Planet of Doomed Men!"
Creators: John Broome and Gil Kane


The formation of the planet Oa was said to have occurred relatively soon after the dawn of time, approximately fifteen billion years ago. Legend has it that Oa was the center of the universe. Currently there is no scientific evidence to prove or disprove this.

The exact location of Oa is (arguably) a secret. There are alternating reports of the planet being inside the core of a spiral galaxy, possibly the Milky Way, surrounded by a sky full of stars or on the very edge of a galaxy's spiral arm.


Across and beneath Oa there are many sights to be seen. Follow the links for more detailed information where available.

Book of Oa

It is said all of history, past, present, future and other possibilities are within the pages of the Book of Oa. More information can be found here.

Central Power Battery

An iconic structure, the Central Power Battery is the source of energy for the Green Lanterns and their power rings. More information can be found here.

Crypts of the Green Lantern Corps

The final resting place for the fallen Lanterns and a shrine to their service, overseen by Lantern Morro. More information can be found here.

Dining Hall

An inter-species cafeteria featuring one of the universe's culinary masters, Lantern Greet.


Hall of Great Service

Hazard Simulation Facility

Used primarily by "white circles" or rookie Green Lanterns, the Hazard Simulation Facility assists in training within a controlled environment. Multiple Lanterns can simultaneously utilize the facility.

Meeting Hall


The sciencells are holding facilities for enemies of the Guardians and the Green Lantern Corps. More information can be found here. - Green Lantern Vol. 2 #195


In the universe containing Earth-247, the planet Oa had not been restored after its destruction in the 20th/21st Century. Instead, a Xudarian criminal, Tomar-Ro had constructed a siphon to tap the ambient energy left in the area of space once occupied by the planet Oa. The siphon was housed in a cloaked space station dubbed Oa-Two and energized his own band of criminals, the Green Lantern Corps of the 30th Century. Oa-Two was ultimately destroyed by Green Lantern Kyle Rayner. - Green Lantern Vol. 3 #97 - 99


 :Green Lantern: Mosaic #10 (March 1993): "Ways to Go" featured a map of the Mosaic World of Oa, listing the territories for the varied alien lifeforms living there at the time.



Who's Who in the DC Universe Update 1993 #2 (January 1993)

Green Lantern/Sinestro Corps Secret Files #1 (February 2008)