Mars may have a solid inner core just like Earth

An artist’s concept of seismic waves detected by NASA’s InSight mission from Marsquakes traveling through the Red Planet’s core.

Scientists have identified another possible commonality between Earth and Mars: a solid inner core.

New research from the University of Bayreuth and the European Synchrotron Radiation Facility (ESRF) conducted here on Earth found that an iron and sulphur mixture mirroring the Red Planet’s inner core crystallized under high heat and pressure. This suggests that the deep interior of Mars could, in fact, be solid, too.