The planet is nearly 5 billion years old and it is the third planet orbiting the Sun in the solar system. The term "Earth" can also be used to refer to the human world as a whole.
However, there are several instances where the world as a whole or the physical planet itself are featured.
In "Reign Storm," Amity Park is pulled into the Ghost Zone when Danny pulls the Fright Knight's Soul Shredder out of the ground. The city later returns to the human realm when Danny defeats Pariah Dark.
The planet Earth is seen in "Flirting With Disaster" when Technus hacks the Cybertron Mega Computer and takes over its satellite in space. Technus then uses the satellite to send commands back down to various locations on Earth to cause havoc. Danny flies to space to stop Technus, and Valerie follows to fight Danny.
The effects of Earth's atmosphere can be seen in this episode, as Valerie's armor begins to burn up when she reenters the atmosphere.
Earth gets a starring role in "Phantom Planet" when the Disasteroid threatens to hit and destroy it. However, Danny Phantom and all the ghosts save the planet by turning it intangible so the Disasteroid can pass safely through it.
Earth plays host to a multitude of species, including:
- Humans: The dominant species on the planet.
- Half-ghosts: There are a few half-ghosts who live on Earth.
- Flora and fauna: There are thousands of billions of plant and animal species that live on this planet.
- Ghosts: While not native to Earth, ghosts can often be found roaming the planet, and a few live in specific human locations.
The Earth in Danny Phantom is much the same as the real-world Earth, particularly in terms of geographical layout, civilization, climate and demography.
Real-world locations, such as Wisconsin and Colorado, are seen throughout the show. However, there are a few fictional cities featured, most notably Amity Park, where most of the show's Earth-side action takes place.
- Main article: Ghost Zone
One of Earth's most notable features is that it has a parallel dimension, the Ghost Zone, where ghosts are found. The Ghost Zone occupies the same space as the human realm, making it its "flip side." As such, major, often disastrous events that happen to one realm will affect the other one as well.
Ghosts often visit Earth, usually with sinister plans in mind, only to be sent back to the Ghost Zone once defeated. Most people of the Earth view ghosts as a threat to society and advocate for their disposal, yet thanks to the heroics of the half-ghost Danny Phantom, this sentiment has begun to change to a more friendly view.
Ghosts are not affected by normal Earth physical laws, including gravity. This allows them to fly and lift heavy objects with ease.
Accessing the Ghost Zone
- Main article: Ghost Portal
There are also many natural portals that open and close without warning and lead to various locations in space and time, such as the Bermuda Triangle. These natural portals can be found via the Infi-map.
- The Cybertron Mega Computer is the most powerful computer on this planet.
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