Unveiling Mars' Hidden Secrets: A Soft Core and Radioactive Magma
New analyses of seismic data from NASA's InSight lander have revealed the presence of a vast radioactive ocean of magma beneath the surface of Mars, reaching up to 125 miles in depth. This discovery challenges previous estimates of Mars' core size and density, suggesting that the core may be small and dense like Earth's. However, the existence of the magma sea raises questions about the history of Mars' evolution and the cause of its magnetic field, as the magma would have prevented the core from cooling.