The F-1 submarine now lies on its starboard (right) side with its bow (front) to the northwest, and subsequent explorations with the HOV Alvin showed the sub was "remarkably intact" after being ...

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.

In 1917, two US submarines collided off the coast of San Diego and submarine USS F-1 sank to the bottom of the Pacific Ocean, along with 19 crew members aboard. The horrible accident, whose ...

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 ...

Oceanographer Victoria Orphan’s dream was coming true. She was sitting in the Alvin submersible, on one of its deepest science dives ever. But the trip was anything but smooth sailing. Victoria takes ...

The U.S. Navy submarine, USS F-1, went down after a collision with its sister ship on Dec. 17, 1917, and now sits 1,300 feet below the surface on the ocean floor off San Diego.

The National Science Foundation completed surveys of the submarine using video cameras, imaging systems on Alvin, as well as sonar systems on Sentry and the research vessel Atlantis.

Open in new tab So Alvin is the United States' only deep diving, human occupied submersible that's used for science. It's kind of best known for being on the discovery of the Titanic.

The little scientific submersible Alvin marked its 25th anniversary of deep-sea exploration last month, but even as oceanographers staged a gala party on the Woods Hole, Mass., waterfront, the Alvin ...