Habitable Zone

A Habitable Zone, Life Zone, or "Goldilocks Zone" is a planetological term for the area of stellar system space in which the right conditions for conventional sophont life is thought to be most favorable.

• Imperial scientists often use the shorthand abbreviation HZ or Hz to indicate this term.
• Some also call it the green band.

Description (Specifications)

In practice, this zone tends to be a few planets out from the main star of a system, in which the conditions for liquid water, temperate weather, and other necessary conditions for conventional life can arise.

• Too far out, and liquid water no longer exists, meaning that only cryomorphs, or extreme cold species can survive.
• Too far in, and only thermomorphs, or extreme heat-loving species can survive.
• And of course, there are hundreds of other factors also involved.

History & Background (Dossier)

The idea of a Habitable Zone was independently developed by many different major and minor race sophont species.

• However, the one thing that most of these Charted Space species hold in common is that they are conventional carbon-based lifeforms. Their idea of habitability differs greatly from exotic or unconventional lifeforms such as Jovionoids.

References & Contributors / Sources

This article was copied or excerpted from the following copyrighted sources and used under license from Far Future Enterprises or by permission of the author.

• GURPS Traveller: First In
• Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science