Venus's Interior

Density:

• Density is 5250 kg/m³.
• This is similar to Earth's density.
• So need an iron core, similar to Earth.

Magnetic field:

• Venus has no magnetic field.
• Presuming that the iron core is at least partly liquid, it does not seem to have the right motions to make a magnetic field.
• The very slow rotation rate of Venus is presumably responsible for the different organization of fluid motions in its core as compared to the Earth.

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