Venus - Metallic Core Hot Plastic Mantle Crust BUT there...

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Venus: Earth’s twin (in size and mass) atmosphere 90 times denser than Earth’s and mostly CO2, sulfuric acid clouds and rain Surface: volcanic and relatively young Interior: probably similar to Earth Rotation: very slow and retrograde Magnetic field: weak (why?) Evolution: no oceans, lots of CO2 in atmosph. greenhouse very hot If Earth were to heat up a runaway greenhouse effect would occur. Temperature would rise and Remember, Earth and Venus are about the same size. Probably have about the same internal structure and heat production
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Unformatted text preview: Metallic Core Hot Plastic Mantle Crust BUT there are some major differences Closer to the Sun No water Very dense atmosphere made mostly of CO2 Much hotter Weak Magnetic field Venus resurfaced itself COMPLETELY about 500-800 million years ago. On Earth ocean floors are only about 200 million years old but the continents are almost 4 billion years old On Venus crust is very thick and heat builds up. Instead of plate tectonics (motion of the plates on crust) there are very large volcanic eruptions every 500-800 million years that cover the whole planet! Why? Probably due to lack of water...
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Venus - Metallic Core Hot Plastic Mantle Crust BUT there...

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