Does venus have a hydrosphere?
- Over 80% of Venus lies within 1 km of the mean radius of 6051.84 km. If Venus had been further from the Sun and avoided the runaway greenhouse outcome, then it would have a hydrosphere like the Earth:- a mean global ocean of some 3 km.
No. There are no oceans, rivers, or lakes on Venus. All of the liquid water on Venus was apparently lost long ago. The solar radiation disassociates water, and the hydrogen was blown off by the solar wind, because Venus has practically no planetary magnetic field. There is still a tiny percentage of water vapor bound as sulfuric acid (rain) in the sulfur dioxide clouds around the planet.
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