On Thursday, University of Southern California researchers concluded that Mars likely holds a "deep groundwater" environment extending far beyond its poles and "bubbles to the surface through cracks in craters," according to Futurism.
“We have seen the same mechanisms in the North African Sahara and in the Arabian Peninsula, and it helped us explore the same mechanism on Mars,” said researcher Abotalib Abotalib in a press release.
Abotalib and colleagues explained their analysis of data from a Mars Express radar instrument in a paper published by Nature Geoscience.
The European Space Agency probe orbiting Mars provided evidence last month of a larger groundwater system than scientists had previously thought existed. But the USC team goes a step further by theorizing that the pressurized water escapes through cracks in the planet's surface to create visible steam vents.