They are just hints but still, such tantalizing hints of ancient city walls, a basalt gate, and buildings immolated in a mysterious fire thousands of years ago. High-tech methods, known as remote sensing, are “seeing” through the ground at the University of Toronto’s archeological dig in south Turkey, with everything but X-ray vision: This year, the archeologists have used magnetometry, and resistivity; other years, they have used images from declassified spy satellites. Laser and radar have been considered but for now, dropped, at least at this site. Read More