Venus may have had a shallow liquid-water ocean and habitable surface temperatures for up to 2 billion years of its early history, according to computer modeling of the planet’s ancient climate by scientists at NASA’s Goddard Institute for Space Studies (GISS) in New York.
A land-ocean pattern like this one was used in a climate model to show how storm clouds could have shielded ancient Venus from strong sunlight and made the planet habitable.
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