Mars has a solid core, resolving a longstanding planetary mystery — new study

By Kevin Olsen, UKSA Mars Science Fellow, Department of Physics, University of Oxford
Mhairi Reid, DPhil Student, University of Oxford

Scientists have discovered that Mars has an interior structure similar to Earth’s. Results from Nasa’s Insight mission suggest that the red planet has a solid inner core surrounded by a liquid outer core, potentially resolving a longstanding mystery.

The findings, which are published in Nature, have important implications for our understanding of how Mars evolved. Billions of years ago, the planet may have had a thicker atmosphere that…

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