Inside Mars

Look inside Mars with a rotating 3D quarter cutaway. Explore representative crust, mantle and core layers informed by InSight-era research.

Remove a quarter of Mars to compare the thickness of its rocky crust, mantle and iron-rich core. Select a layer to read about its composition and the limits of the model.

An interior inferred from observations

Seismic measurements, gravity and rotation constrain the Martian interior. This model uses representative spherical boundaries. The deep molten layers and possible inner-core structure remain active research topics, so the core is grouped into one region.

What the materials show

Rock grain, metal colours and animated flow are explanatory visual treatments. They are not photographs of the interior. Layer radii use the same scale as the planet; the mantle is predominantly solid rock.

Source: NASA JPL · InSight and the Martian core.

Surface and interior explorers

Explore the surface of Mars · Inside Mars

Return to the whole world · All 3D objects

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