An investigation into UFO sightings has uncovered a claim from a navy officer that his crew saw an underwater spaceship that ...

A sonar expert believes that the “banging noises” detected by rescue crews searching for the Titan submersible that disappeared during its descent to the Titanic are likely “debris” from the ...

Islanders in the Outer Hebrides whose lives are being disrupted by a mysterious humming sound say they believe the source is military operations in the North Atlantic. The persistent low frequency ...

Why Modern Submarines Are Black If you’ve ever wondered why modern submarines are painted black, the answer has less to ...

TOKYO — The Defense Ministry is considering equipping the Maritime Self-Defense Force's submarines with active sonar that sends out sound waves to detect the location of other vessels, The Yomiuri ...

An error has occurred. Please try again. With a The Portland Press Herald subscription, you can gift 5 articles each month. It looks like you do not have any active ...

Connecticut divers have discovered the wreckage of an experimental submarine that was built in 1907 and later scuttled in Long Island Sound.The Defender, a 92-foot-long boat, was found Sunday by a ...