NASA has taken accurate measurements of Mars’ core, making it the first planet other than Earth that this has been accomplished
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More InSight Mission

InSight scientists reported their measurements in a series of presentations last week at the virtual Lunar and Planetary Science Conference headquartered in Houston, Texas.

Credit: NASA/JPL-Caltech

Based on Insight’s seismographic instruments, which interpret seismic waves bounced between the planet’s mantle and core, the radius of the Red Planet’s heart was found to be 1,810 to 1,860 kilometres, approximately half the size of Earth’s.