AreanTundral Subtype
Arean
Image from John M Dollan

Mature, cold Arean type worlds, often with considerable reserves of ice.. While the atmosphere is eroded and geological processes are all but extinct, there remains large reserves of water at the poles or beneath the surface. Life is possible, but only at very simple levels. Stellar proximity typically leaves these worlds quite frigid. Some worlds may have occasional and temporary conditions which allow for surface liquid water.
 
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Development Notes
Text by John M. Dollan

Initially published on 31 December 2007.