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NASA Confirms Mars Has Solid Inner Core, Reshaping History

9/10/2025

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Summary

Story summary

Researchers from the U.S. and China identified a solid inner core on Mars using seismic data from NASA’s InSight lander.
Published in Nature, the findings indicate a complex internal structure, challenging prior assumptions.
InSight recorded over 1,300 Marsquakes from 2018 to 2022, suggesting a solid core approximately 600 kilometers in radius.
Some scientists remain skeptical, questioning the existence of light elements that could hinder a solid core.
Confirmation of this discovery may alter theories regarding Mars' geological history and habitability.

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Story summary

Researchers from the U.S. and China identified a solid inner core on Mars using seismic data from NASA’s InSight lander.
Published in Nature, the findings indicate a complex internal structure, challenging prior assumptions.
InSight recorded over 1,300 Marsquakes from 2018 to 2022, suggesting a solid core approximately 600 kilometers in radius.
Some scientists remain skeptical, questioning the existence of light elements that could hinder a solid core.
Confirmation of this discovery may alter theories regarding Mars' geological history and habitability.