Posted by jack ruby on 3/29/2009, 10:24 am

Best guess is that these domes are "mud volcanoes" similar to those found on earth. The action of the volcano in bringing up rock from deep within the crust up toward the surface could aid in a robotic search for evidence of past life there. The complete story is from the BBC. http://news.bbc.co.uk/2/hi/science/nature/7966437.stm