Similar to Earth's core, the core of Mars is expected to be dominantly composed of molten iron metal. However, it is lower in density, indicating that the Martian core must contain a high ...

The decrease in core radius implies a higher density than estimated earlier and is compatible with a metal core consisting of 9–15 wt% of light elements, chiefly S, C, O, and H.

which supported the belief that the Red Planet has a liquid core. Many geoscientists also argue that Mars’ molten center is too hot and consists of lighter elements like sulphur, making it less ...