iron core

Image shows artists impression of Mars core. Analysis of Martian seismic data recorded by the InSight mission have revealed that Mars’s liquid iron core is surrounded by a150-​km thick molten silicate layer, as a consequence of which its core is smaller and denser than previously proposed. (Artwork: Thibaut Roger, NCCR Planet S / ETH Zürich)

Mars’ liquid iron core is smaller and denser than previously thought, study

Mars’ liquid iron core is smaller and denser than previously thought, according to a new study analysing InSight lander's data.