Was Venus Ever Habitable? Divergent Fates of Venus and Earth
- 演化之聲
- Mar 20
- 5 min read
The present-day environment of Venus is extremely hostile, with an average surface temperature of approximately 750 K (476.9°C), far beyond the limits for any known life. However, this does not necessarily mean that Venus has always been uninhabitable. Over the course of Solar System history, Venus has undergone profound changes, and its early state may have been dramatically different from what we observe today. When the young Sun was significantly fainter, Venus was located near the center of the classical habitable zone. This raises a fundamental question: could Venus once have sustained long-term liquid water on its surface, and perhaps even supported microbial life? These questions not only address the mysteries of Venus itself but also provide a framework for re-examining early Earth and evaluating how fragile planetary habitability truly is.
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