Habitability Planetary Atmospheres Biosignatures Planetary Characteristics Atmospheric Chemistry Mars Exploration Life in Extreme Environments Habitability Studies Subsurface Oceans Planetary Composition Planetary Formation Habitability Criteria Life Conditions Atmospheric Composition TRAPPIST-1 Titan Life Detection Alien Worlds Solar System Exploration Tau Ceti TRAPPIST-1 System Gas Giants Ocean Worlds Habitability Models Life Beyond Earth
Scientists have introduced the Radiolytic Habitable Zone to guide missions toward underground water on Mars or icy moons in search of life.