English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The concept of the Circumstellar Habitable Zone has served the scientificcommunity well for some decades. It slips easily off the tongue, and it wouldbe hard to replace. Recently, however, several workers have postulated types ofhabitable bodies which might exist outside the classic circumstellar habitablezone (HZ). These include not only bodies which orbit at substantial distancesfrom their parent stars, but also snowball worlds with geothermally-maintainedinternal oceans and even densely-atmosphered worlds withgeothermally-maintained surface oceans, which have been ejected from unstableplanetary systems into interstellar space. If habitability is not a unique anddiagnostic property of the HZ, then the value of the term has been compromisedin a fundamental way. At the same time, it has become evident that multipleenvironmental states, differing in important ways in their habitability, arepossible even for geophysically similar planets subject to similar levels ofinsolation, within the classic HZ. We discuss an approach to investigations ofplanetary habitability which focuses on planetary-scale ecosystems, which arehere termed - ecospheres. This is following a usage popular amongst ecologists,such as Huggett (1999), rather than that of authors such as Strughold (1953)and Dole (1964), who used it as a term for the HZ. This approach emphasizesecodynamic perspectives, which explore the dynamic interactions between thebiotic and abiotic factors which together comprise ecosystems.

Circumstellar Habitable Zones to Ecodynamic Domains: A Preliminary Review and Suggested Future Directions