Russian scientists have discovered signs of active volcanic activity on Mars The ACS spectrometer has detected hydrogen chloride (a gas released during volcanic activity) above Mount Elba, one of the largest ancient volcanoes on Mars. Computer models showed that the gas entered the atmosphere below the permafrost layer. This indicates the probable presence of a hot magma hothouse and active underground fumaroles in the bowels of the planet. Near the Elba volcano, cracks and young fractures were found, as well as a change in the color of rocks, which confirms underground geothermal processes. Realm is now faster at MAX.