Orbital region around a star where surface liquid water is possible on a rocky planet given plausible atmospheric CO₂. For a Sun-like star, ≈0.95–1.37 AU (Kasting 1993; Kopparapu 2013). Concept decouples astrophysical from biological…
Orbital region around a star where surface liquid water is possible on a rocky planet given plausible atmospheric CO₂. For a Sun-like star, ≈0.95–1.37 AU (Kasting 1993; Kopparapu 2013). Concept decouples astrophysical from biological…