Earth is a planet in the Olympian Galaxy, the birthplace of the human race. It is technically under the jurisdiction of the Mortal Republic but is self-governed, with no formal contact with any other planet.
Humans evolved on this planet and under Demeter's supervision they were used to populate the galaxy; the last common ancestor to all humans living in the Olympian Galaxy is thought to have lived between 600,000 and 1 million years ago on Earth. (Beyond The Impossible #194).
The planet was later called Ithaca and was the birthplace of Ulysses (Beyond The Impossible #131) and Herakles (Untold Tale Of Vesta); during the Trojan War, Ulysses brought several Drylon devices to Earth, including the Palladium. (Beyond The Impossible #45)
With the Palladium isolating Earth from faster-than-light travel and communications, Earth came to be known as Lethe, "the planet forgotten by the gods". Following the end of the Trojan War, it was assigned to the newly created Hestia sector.
In 753 B.C.E. Hestia was permanently exiled from Olympus, effectively sealing Earth from the rest of the galaxy for over 2,000 years. (Untold Tale Of Vesta). Eris was also exiled to Earth as punishment for unknown crimes, meeting Hestia in the 6th century. (Beyond The Impossible #75)
Two Drylon devices were discovered here in the 1930s (the Core in Japan by the Tanaka family and the Heart Of The Universe in Greenland by German scientist Heinrich Null): about fifty years later, a pregnant Leiko Tanaka used both devices to teleport herself out of Earth. Working with the Mortal Liberation Front, she implanted the Nexus inside her womb and returned to Earth. (Beyond The Impossible #49)
Soon after the eighteenth birthday of Noriko Null, Leiko's daughter and Heinrich's great-granddaughter, Athena traveled back to Earth to activate the Nexus inside her brain. (Beyond The Impossible #2)
Noriko and her team, the Vanguard, soon defeated the Many sent by Hermes and the Talos sent by Hephaestus, Earth's first experiences with alien attacks. (Beyond The Impossible #7 and Beyond The Impossible #16)
Earth would have to deal mostly with domestic issues until Artemis attacked during the Vanguard's absence, destroying Beijing and a naval coalition of several countries, with massive loss of life. (from Beyond The Impossible #86to Beyond The Impossible #95)
First appereance: Beyond The Impossible #2
Also known as: Terra, Ithaca, Lethe
Capital city: New York City (unofficially, as headquarters of the United Nations and the Vanguard)
Population: 7.5 billion
Affiliation: Unincorporated territory of the Mortal Republic
Form of government: Self-governing world divided into loosely organized sovereign nations, 193 of which call themselves the United Nations
Distance from Olympus: 28,000 light-years
Known facts: faster-than-light travel and communications impossible with conventional means due to the presence of Drylon technology
Technology: Class-7 technological advancement (Beyond The Impossible #176)
Military personnel, including reserves: 64 million (Beyond The Impossible #176)
Trivia: the exact location of Earth is a closely guarded secret. Despite this several non-native people are currently aware of this information, including Athena, Hermes, Alexer Syzar, Artemis, Eris, Tyche and several high-ranking Demons