Germany's U-505 submarine was the 1st warship captured by the US Navy in over a century and top secret during World War II.

Scientists used submersibles to explore a German U-boat sunk 7 miles off the Rhode Island coast the day before Nazi Germany surrendered ... "We learned a lot about the limitations of the technology.

But next week, the U-boat will be reunited with its original periscope after the prized optical instrument ... “German technology was highly desirable at the end of the war,” said William ...

Once the hunters of the Atlantic ocean, the German wolfpacks by 1944 had become the hunted. Allied task groups dubbed “Hunter-Killer[s]” methodically attacked, scuttled and destroyed German U ...

A U.S. Navy study concluded each standard Type VII U-Boat cost Nazi Germany $2.25 million dollars—while a four-engine B-24 cost about $297,000 and a twin-engine Catalina seaplane $90,000.

But thanks to cracked Enigma codes, British submarine HMS Venturer was already lying in wait. In a tense underwater pursuit, Venturer tracked U-864 using sonar and performed what would become the only ...

The Nazi submarine U-506 made a stop at a U-boat base in France in 1942. The new book "A Game of Birds and Wolves" details the effort to combat German submarines in the Atlantic during World War II.

Nazi Germany U-boats once prowled the oceans, but today, nearly a century after the end of World War II, several of the submarines lie at the bottom of the Black Sea. How the U-boats reached the ...

Researchers said they located a German U-boat that went "on the run" from British forces as the war ended. The discovery ends speculation that Adolf Hitler used it to escape to South America.

Airs Wednesday, June 22, 2016 at 9 p.m. on KPBS TV ...