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EoGaian Type
Most terrestrial planets, in the period
just after their initial formation, go through a stage of massive
outgassing and atmospheric condensation. In essence they are worlds
that have begun to form oceans, while still forming their primal
atmospheres.
In age, these worlds tend to range from 100
to 800 million years old. Earth was one such planet, before the
great impact which formed the Moon. Water-based erosion tends to be
massive as the torrential rains slowly form the oceans, and surface
features are often craggy and fantastical in form.
Life tends to occur on these worlds fairly
quickly, lending credence to the theory that once all the necessary
elements for life are present (water, energy, etc.), it will inevitably
occur. However, that life is little more than extremely primitive
mono or pre-cellular forms. Of
course, these worlds are also quite geologically active. Extreme
levels of volcanism are common, and the initial stages of plate tectonics
are just beginning. But it is by no means a foregone conclusion that
these planets will continue to evolve towards a more Earth-like
state. An entire range of circumstances, including mass and density,
will dictate the future planetary evolution, and these worlds could as
easily become Arean, Cytherean, or Gaian in nature.
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Many EoGaian worlds are thickly shrouded
within their primordial atmospheres, while beneath the earliest seas begin
to form.
Even when the skies clear, the newly wet
surfaces of EoGaian worlds are desolate, and have the stain of methane in
their skies.
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Quick Facts
The Evolution of Gaian Worlds: EoGaian
planets can be seen as the first definitive step towards becoming a true,
life bearing Gaian planet. While not all EoGaian planets will become
Gaian, for several hundred million years they do hold promise. They
are one of the few world Types to possess active geology and large
expanses of surface water.
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