"Wait, go back... Supergirl has her own Earth?"
"Not anymore."
Ray Palmer and J'onn J'onzz[src]

Earth-38[1] was one of the many universes in the multiverse. It was the home universe of Superman and Supergirl. During the Anti-Monitor Crisis, the entire universe was engulfed in a wave of antimatter, with 3 billion of Earth's citizens surviving due to evacuation to Earth-1, making Earth-38 survivors refugees.

After Oliver Queen died while battling the Anti-Monitor and reformed the universe, Earth-Prime was formed, which contained most elements of Earth-1, Earth-38, and Earth-BL.


Alien life was common knowledge for over a decade on the Earth of this universe - in particular, the Kryptonian heroes Superman and Supergirl. Barry Allen accidentally traveled to the Earth of this universe while testing out his tachyon device and was able to return home with Supergirl's aid.[2]

A few months later, Barry and Cisco traveled to the Earth of this universe to recruit Supergirl's help[3] in facing the Dominators.[1]

When Cisco and Gypsy had a duel over the life of H.R. Wells, they crossed the dimensions and landed on this universe's Earth, in the office of James Olsen. They were seen by Eve Teschmacher fighting before vanishing into another breach.

Recently, the atmosphere of Earth had been seeded with a trace amount of lead, making the planet uninhabitable to Daxamites. Though by the 2400's of a now erased future, a cure was invented by L-Corp, allowing said species to stay on Earth without any problems.

Earth-38's destruction

Earth-38 being destroyed by antimatter

In 2019, a wave of antimatter sent by the Anti-Monitor destroyed this Earth, however, with the help of Lena Luthor and heroes of Earth-1, the heroes of Earth-38 manage to evacuate 3 billion inhabitants to Earth-1. The Monitor predicted that one third of all survivors were saved by Oliver Queen, sacrificing himself to protect the quantum tower protecting Earth-38 from destruction before the tower, the Earth and Queen himself fell.[4]

Events (in chronological order)

Erased future

Notable individuals



From Earth-1

From Earth-19

From Earth-221

From the Fifth Dimension

From the Netherverse

From unknown Earths

Known locations



Season 1

Season 2

Season 3

Season 4

Season 5

The Flash

Season 2

Season 3

Season 4

Season 5

Season 6

DC's Legends of Tomorrow

Season 2

Season 3


Season 6


Season 1


Adventures of Supergirl

The Chronicles of Cisco


  • Barry Allen went through a series of names from individuals on his Earth and Earth-2, seeing if they existed on Earth-38. After running them by Kara Danvers and looking them up online, it appeared that Harrison Wells, Cisco Ramon, Caitlin Snow, Green Arrow, Black Canary, the Atom, Firestorm, Zoom and even himself, as the Flash, all either did not exist or at the very least didn't share the same names and identities of their counterparts.
  • While Central City still existed on Earth-38, S.T.A.R. Labs did not.
  • The existence of extraterrestrial life was common knowledge on the Earth of Earth-38, whereas only a small number of individuals outside of the government knew of them on Earth-1, at least in the 21st century.
  • It was identical to Earth-1 in many ways such as aesthetics, time, the existence of real-life figures such as celebrities, politicians and artists, currency, law enforcement, crime, vigilantism, government, mass media, fine art, history, historical events, holidays, politics, political issues, the internet, magic, life, everyday life, physical laws, nature, Greek Mythology, science, popular culture and technology unlike many other Earths.
  • There had been numerous encounters with genies, including some who may have been Imps, that have been documented for centuries on Earth-38.
  • The F.B.I. (Federal Bureau of Investigation) and The United States Army both existed on Earth-38 as well.
  • The Chemical compound "DT Dichlorodiphenyltrichloroethane" (also known as DDT) existed on Earth-38 as it was been Banned by the American government who then destroyed any remaining stockpiles of it.

Behind the scenes


  1. 1.0 1.1 1.2 "Invasion!"
  2. "Worlds Finest"
  3. "Medusa"
  4. "Crisis on Infinite Earths: Part One"
  5. "For Good"
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