Scientists Uncover Hidden Structures Beneath Mars' Surface

New research reveals dense formations and active mantle processes under the Red Planet's northern polar plains and Tharsis region.

Researchers combined data from multiple missions, including NASA's InSight, to create a new gravity map of Mars.
The map shows dense, large-scale structures buried under Mars' ancient ocean and northern polar plains.
These structures, denser than their surroundings by 300-400 kg/m³, may be volcanic or impact-related in origin.
A vast, lightweight structure beneath Tharsis Rise is causing Olympus Mons, the largest volcano in the solar system, to bulge upward.
The findings suggest that Mars' interior might still be active, potentially leading to new volcanic features on the surface.