Is this a habitable zone?

Well we have water on Mars and, as James Randerson says, NASA have a cool video of the panoramic view from the Phoenix lander. I’ve added some related audio clips from Mars Phoenix lander lead scientist Peter Smith of the University of Arizona and from William Boynton, lead scientist for the TEGA instrument. Image credit: NASA/JPL-Caltech/University Arizona/Texas A&M University. And as Charles Arthur asks, “So, water. Anyone for terraforming?”