Is there anybody out there? NATO hones Arctic subs’ sonar skills

In the icy waters of the Arctic, NATO scientists are dissecting sound waves to improve the West’s ability to track Russian submarines, as global warming alters acoustics underwater. In the icy waters of the Arctic, NATO scientists are dissecting sound waves to improve the West’s ability to track Russian submarines, as global warming alters acoustics underwater. Other Phys.org – latest science and technology news stories