Welcome to Mars! Not Mars as it is - airless, most likely lifeless, with only the faintest hints of what might have once been a damp, if not necessarily lush and living, world billions of years in the past. No, this is Mars as it should be and as it was once imagined to be - an ancient, dying, but not yet dead world, a world where a vast canal network reaches from pole to pole, bringing... [click here for more]