12 Surprising Recent Discoveries About Mars Most People Missed

7. Underground Magma Chambers Still Active

Seismic data from NASA's InSight lander, combined with thermal imaging from orbiting spacecraft, has provided compelling evidence that Mars maintains active magma chambers beneath its surface, particularly in the Tharsis volcanic region. Analysis of marsquakes recorded between 2019 and 2022 revealed seismic signatures consistent with magma movement and thermal expansion in underground chambers, suggesting that Mars' volcanic system is not extinct but merely dormant. The seismic data indicates that molten rock exists at depths of 50 to 150 kilometers beneath the surface, maintained in liquid form by radioactive decay and residual heat from the planet's formation. These findings challenge the long-held assumption that Mars became volcanically inactive billions of years ago, instead suggesting that the planet could experience future volcanic eruptions. Thermal infrared observations have detected subtle but persistent heat signatures in several locations that correlate with the seismic evidence, indicating that these magma chambers are actively warming the overlying crust. The presence of active magma has significant implications for Mars' internal structure, atmospheric evolution, and potential for supporting life, as volcanic activity could provide energy sources for chemosynthetic organisms and contribute to the periodic release of gases into the atmosphere. This discovery also suggests that Mars may be more geologically similar to Earth than previously thought, with ongoing internal processes that continue to shape the planet's surface and subsurface environment.