Eden

## Eden-113

* After
* Before
* Eratat

## Description

**Eden** is the second planet in the Upsilon System, and the only astronomical object harboring both mechanical and biological life naturally. The surface of the planet is extremely cold and has a layer toxic gas mixed with tiny crystals, causing massive storms that encompassed entire continents. Alternative names are: the snowball world, by the Greek Goddess Khione, or Upsilon.

**Warning, the following may contain spoilers.**
Eden is filled with various cavernous expanses that fan out into larger, mechanical caves, filled with various apparatuses for unknown purposes but was supposedly left behind by another intelligent species other than Humans or Robots. And although never seen in Artificial it is assumed that the Planet was once inhabited or still inhabited by aliens. In Perpetual Motion markings are shown to be in both English and in an alien language, and though it could've been written by an unknown robot language, it doesn't match any possible robot languages in the series, and most are conventional code based languages, or simple forms of communication such as binary or morse code.

Its revealed later in the series that Robots caused The Collapse,

Eden is locked into a permanent winter state due to the vast amounts of crystal dust and gas in the atmosphere, the crystal particles work with the gas to block out the majority of the natural light on the surface of Eden, as well as the heat transmitted from that light. As a result of this extensive blocking of sunlight, coupled with other reasons for the planets cool temperature, such as a cooled core, temperatures on Eden can reach as low as -23 C° and a an average of -18 C° (-10 F° & -2 F° respectively). In such temperatures, life is unsustainable, let alone complex life such as humans and other wildlife that used to exist on the planets surface.

After the Collapse of human society on the planet due to the lengthy aphelion period of the planet, many key infrastructural constructs, such as powerplants, other electrical systems, piping/sewage systems, and so on, went offline or ceased to function due to the extreme cold. Later this resulted in a chain-reaction of explosions from numerous crystalline reactors, causing further damage to the planets ecosystem by the introduction of radioactive chemicals into the atmosphere, that choked the skies and blocked light for centuries to come. All photosynthesis, as sparse as it was, ceased completely, starving herbivorous animals, and killing off the carnivorous animals that relied on the herbivores to feed them. What life did still exist, did so underground in cave systems such as the Floral Caverns, or the Ash Canyon, and Hadrian Valley, areas with readily available resources. This mass extinction would be global, and 92% of all life of the planet was completely wiped out, including some non-native species brought extra-terrestrially (including humans).

Eden has a naturally large elliptical orbit around its host star (Diovone), reaching about 5.1 AU (astronomical units) or 766 million kilometers. With the majority of that orbit around its host star being dominated by an extremely long winter, in which, the majority life on the planet would retreat underground into geothermal caverns. Due to this extreme orbit, years on Eden are extended to around 2.44 years instead