Alvin celebrates its 50th birthday this year. In the past half century, the deep-sea submersible has made more than 4,700 dives all over the world. It has discovered hydrothermal vents, explored the ...

The captain of the F-1 submarine later testified that, in the fog, he didn’t see the oncoming vessel until the last second. Someone yelled to close the main deck hatch. But it was too late. The other ...

MINNEAPOLIS (AP) - Harold E. Froehlich, who designed a deep-sea vessel used to explore the wreckage of the Titanic and search for ocean life forms, has died, his family said Wednesday. He was 84. He ...