Interiors of Earth, Mars and the Moon, illustration. These cutaway artworks show the internal layers of the Earth, Mars and Earth's Moon. In all three

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Interiors of Earth, Mars and the Moon, illustration. These cutaway artworks show the internal layers of the Earth, Mars and Earth's Moon. In all three, the heat and pressure increase with depth, turning the rocky materials molten. Earth is unique in that it has a strong magnetic field thought to be caused by motions in its liquid iron core. The relative sizes are to scale: the Earth is around 12,742 kilometres across, Mars is 6778 kilometres across, and the Moon is 3474 kilometres across.

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Size: 5000px × 1818px
Photo credit: © NASA/JPL-CALTECH/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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