After an extensive analysis of data from NASA s InSight lander, researchers have found that Mars s liquid iron core is considerably smaller and denser than previously assumed.
Seismic waves have been discovered for the first time rippling through Mars core, offering clues as to why the Red Planet evolved to become barren and "hostile to life".
Both Earth and Mars possess cores comprised primarily of liquid iron. But about 20% of the Martian core is made up of elements lighter than iron - mostly sulfur, but also oxygen, carbon and a dash of hydrogen
Scientists conducted new experiments to determine how Mars lost its oceans. Mars, the 4th planet from the Sun in our solar system, has been a fascination of space exploration and a possible future settlement for humans over the century.