What thermal tipping point marks the inner boundary of the Habitable Zone?
Answer
A runaway greenhouse effect
The inner boundary is defined by the point where intense stellar radiation causes surface water to boil into the atmosphere, leading to an accelerating cycle that boils away all ocean water.
#Videos
What Is the Habitable Zone? - YouTube
Related Questions
What concept defines the orbital distance from a star where liquid water could theoretically exist?Why is the Habitable Zone frequently referred to as the “Goldilocks Zone”?What primary stellar characteristic dictates the location of the Habitable Zone?For a G-type main-sequence star like our Sun, where does the Habitable Zone currently sit?How does the Habitable Zone position change for larger, hotter A or F-type stars compared to the Sun?What thermal tipping point marks the inner boundary of the Habitable Zone?What must a planet near the outer boundary of the HZ possess to maintain liquid surface water?How is the Galactic Habitable Zone distinguished from the stellar Habitable Zone?What effect does a sufficiently thick atmosphere have on a planet orbiting at the outer edge of the HZ?What term describes the state where a planet orbiting close to an M-dwarf constantly faces the star on one side?Which planetary mechanism is essential for maintaining a stable climate over geological timescales by recycling carbon dioxide?How should the Habitable Zone be considered when assessing exoplanet candidates for life?