Research published in the journal Nature shows that the core of Mars is smaller and denser than scientists previously assumed. And it is also surrounded by molten stone. This is the latest data from NASA’s InSight lander. They help clear up confusion about the internal composition of Mars.

In 2018, scientists based on records of seismic waves from Mars found that the radius of the core is about 1,118-1,149 miles.

However, in 2021, a meteorite crashed into Mars, and InSight recorded other seismic waves. They proved that the radius of the core is about 1,013-1,060 miles. The team of researchers believes that this is about half the radius of the entire red planet.

In addition, it turned out that the nucleus is denser than previously thought. It is also surrounded by a layer of molten silicates about 90 miles in size. This layer created the illusion that the core is larger.

According to Vedran Lekic of the University of Maryland, the layer serves as a “blanket” for the nucleus, which “concentrates radioactive elements.” Studying this could help scientists find answers about the formation of Mars and its lack of an active magnetic field.

Recall that the Moon may be 40 million years older than we thought. New Trace Minerals Found on the Moon Indicate Its Older Age