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Mars Reveals Solid Inner Core, Reshaping Planetary Theories

9/3/2025

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Summary

Story summary

Mars has a solid inner core approximately 600 kilometers (373 miles) wide, according to NASA's InSight lander seismic data.
This discovery challenges earlier theories of a liquid core and indicates structural similarities with Earth's core.
Further research is necessary to explore Mars' magnetic field history and core formation.
The study was published in the journal Nature, underscoring the significance of planetary research.

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Story summary

Mars has a solid inner core approximately 600 kilometers (373 miles) wide, according to NASA's InSight lander seismic data.
This discovery challenges earlier theories of a liquid core and indicates structural similarities with Earth's core.
Further research is necessary to explore Mars' magnetic field history and core formation.
The study was published in the journal Nature, underscoring the significance of planetary research.