Remember, when in a submarine one must think up and down as well as left and right. Sonar technicians are able to look at the sound waves and identify their source with extreme accuracy.

This is known as the dysphotic (or twilight) zone, where sunlight ... to 150 hours before the submarine needs to resurface for the system to be recalibrated with GPS. SONAR is a significant ...

The submarine sonar contract is the first in 15 years for Thales outside its core underwater markets of France, the U.K., the U.S. and Australia, said Emmanuel Michaud, vice president for ...

In a discovery that highlights the intensifying shadow conflict beneath the waves, British military personnel have recovered ...

Fitted to the array is sophisticated sonar equipment, which, in this incident, was in a collision with the Russian submarine. HMS Northumberland was tracking the underwater vessel at the time of ...