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Mars Volcanoes Erupt? Gas Hints at Active Planet
5 Nov
Summary
- Hydrogen chloride gas detected above Mars' Alba Mons volcano.
- Gas suggests Mars' interior may still retain heat for volcanism.
- Active volcanism raises possibility of subsurface life-supporting environments.
An orbiting atmospheric research spacecraft has detected the pungent gas hydrogen chloride above surface fissures along Mars' ancient Alba Mons volcano. This significant finding suggests that the red planet may still be volcanically active, challenging the notion of its geological dormancy.
The ExoMars Trace Gas Orbiter documented the gas, a common constituent of volcanic emissions on Earth, in the low atmosphere near Alba Mons. Researchers believe the most likely origin is volcanic seepage from fissures, potentially connected to a subsurface magma chamber. This implies Mars' interior may retain sufficient heat for ongoing magmatic processes.
This discovery has profound implications for the search for life beyond Earth. Active volcanism suggests pockets of heat in the Martian crust, which could interact with subsurface water. Such active hydrothermal systems may provide the energy and conditions needed to support microbial life, making warm subsurface environments prime targets in the search for life on Mars.
