Martian warm spots could be towers of ice New Scientist

Unusual warm spots on Mars might represent “ice towers” similar to those seen in Antarctica, say researchers. They could even harbour life, Nick Hoffman of Melbourne University told a conference on Thursday. Hoffman detected warm spots in the Hellas Basin after scrutinising infrared images taken with THEMIS, the heat-sensing camera on the Mars Odyssey orbiter. The spots are between 20 and 40 degrees warmer than their surroundings both night and day, and irrespective of whether they are being hit by sunlight.