Scientists at the University of Oxford have uncovered evidence that Mars harbored enormous magmatic systems deep beneath its surface, resembling those on Earth. This discovery comes despite the red planet lacking plate tectonics, which geologists long believed was necessary for such complexity.
These findings reshape our understanding of Martian geology, suggesting the planet's interior was far more active than previously thought. Without plate tectonics, researchers have struggled to explain the presence of certain volcanic features and magnetic signatures on Mars.
The study, published in a peer-reviewed journal, analyzed seismic and topographic data from NASA's InSight mission. The team identified signatures of large magma chambers at depths of 30 to 100 kilometers, indicating prolonged thermal activity.
If confirmed, these hidden systems could imply that Mars's volcanic past was more dynamic and sustained than current models predict. This also raises questions about the planet's potential for ancient habitability, as active magma systems can drive hydrothermal environments.
However, some experts urge caution, noting that the evidence is indirect and based on limited seismic readings. The InSight lander's single station may not capture the full range of subsurface features.