Why is Venus considered uninhabitable despite being located near the inner edge of the habitable zone?
Answer
It suffers from a runaway greenhouse effect due to a thick carbon dioxide atmosphere
Although Venus is positioned near the inner edge of the habitable zone, it remains inhospitable to life. Its thick atmosphere, composed primarily of carbon dioxide, creates an intense runaway greenhouse effect. This process traps heat so effectively that surface temperatures become hot enough to melt lead, making the maintenance of liquid water impossible. This demonstrates that being within the habitable zone is a necessary but not sufficient condition for habitability, as atmospheric composition plays a decisive role in regulating surface conditions.
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Goldilocks Zone
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