The dark region in the upper right corner of this Mars image, the Acidaria Planum, may contain bacteria deep within its rocky surface.
NASA/JPL/USGS
Certain regions of Mars have been identified as possible locations for modern life, and that life lives far below the surface.
Andrea Butturini Professors at the University of Barcelona are investigating possible habitable habitats on Mars, focusing on regions that might have the right amount of water, heat and energy for life to exist.
Source: www.newscientist.com