Autonomous Underwater Warfare Is Here—And America Is Fighting to Keep Up With North Korea

Underwater unmanned vehicles with nuclear payloads pose the danger of a "radioactive tsunami," which could wipe out coastal cities.

View in Browser  SHOP EXCLUSIVE SUBSCRIBE Autonomous Underwater Warfare Is Here—And America Is Fighting to Keep Up With North Korea Underwater unmanned vehicles with nuclear payloads pose the danger of a "radioactive tsunami," which could wipe out coastal cities. Read More Archaeologists Entered an Ancient Building—and Found 15 Abandoned Skulls Under the Floor They may have been part of a mysterious ritual. Read More A Seismic New Semiconductor Could Lead to the Holy Grail of Data Storage It requires 1 billion times less energy than our current systems. Read More These Stocking Stuffer Ideas Are Great for Dads, Husbands, and Grandpas Don't overlook those small, practical gifts. Read More The Best Home Generators Help You Weather Any Storm Keep your fridge and home essentials running no matter what with these home generators. Read More Archaeologists Found a Mysterious Half-Body Statue Hiding in a Sacred Hot Spring The "exceptional" body was severed as if from a surgical cut. Read More Need Assistance? Contact Us. Follow Us Unsubscribe | Privacy Notice | CA Notice at Collection Popular Mechanics is a publication of Hearst Magazines. ©2024 Hearst Magazine Media, Inc. All Rights Reserved. This email was sent by Hearst Magazines, 300 West 57th Street, New York, NY 10019-3779