Nomad, one of Carnegie Mellon University’s most accomplished robotic rovers, is at it again. This time the rover that trekked 220 kilometers through Chile’s Atacama Desert and explored Antarctica for meteorites is being groomed for a potential return to the frozen continent to search for signs of living microorganisms near the top of its icy surface. Nomad, which successfully traversed 10 kilometers through the snow and ice on Lake Mascoma in Hanover, New Hampshire , was equipped with a wind turbine for the first time, while researchers studied the possibility of powering a robotic investigation with combined wind and solar energy.