A hydrogen submarine drone can see objects smaller than a bottle on the seabed, and that could change how critical cables are protected

A hydrogen-powered submarine drone can spot tiny seabed objects and watch critical cables for weeks at a time.

A 145-kilometer artificial river is almost finished in Brazil, and its 91% progress puts water security at the center of the Northeast

Brazil’s giant artificial river nears completion, bringing new hope for water security across drought-prone Ceará.

Iran put a new eye in space with China’s help, and the 6.6-foot detail could change how strategic sites are watched from orbit

Iran gains access to sharper satellite imagery, raising new questions about surveillance and military planning.

A floating wind platform built to resist 20-meter waves is now producing power in China, and offshore energy is entering a larger phase

China’s giant floating wind platform is now generating power, testing the future of deep-sea renewable energy.

Ukraine developed a guided bomb from scratch in 17 months, and Vyrivniuvach could shift how its defense industry supplies the front

The important part is not only that Ukraine has built one. It is that officials say the bomb carries a 551-pound warhead, was ...

USPS closed Baker’s post office after safety concerns, and the temporary trailer system is exposing how fragile rural mail infrastructure can be

In the meantime, residents in a town without door-to-door mail delivery have been picking up mail from temporary ...

A small balcony power plant became a courtroom fight, showing why apartment energy is harder than installing panels

A small balcony solar system cut power bills, but it also sparked a legal fight over who controls shared buildings.

Dalian’s new airport will sit on an artificial island built for 80 million passengers, and the engineering challenge is the sea itself

China is building an airport on an artificial island, betting that reclaimed land can support 80 million passengers.

The B-2 Spirit was already hard to see, but the B-21 Raider’s smaller radar return shows how stealth engineering is changing

At first glance, the B-21 looks like a close cousin of the B-2 Spirit. Both are flying-wing bombers, with no traditional tail ...

The Mi-24 Hind was built to attack and carry troops, but one painted in U.S. Coast Guard colors became a strange Cold War movie double

A Soviet Mi-24 Hind wore U.S. Coast Guard colors for a movie role, creating one of aviation's strangest disguises.

China’s mini reactor does not look like a giant plant, but it can power homes, desalinate water, and change remote energy

China's compact Linglong One reactor could power thousands of homes and test whether small nuclear plants can scale.

The 17-year-old did not need a secret facility: His backyard shed, old batteries, and smoke detectors were enough to scare a neighborhood

A teenager's backyard nuclear experiment alarmed federal agencies and turned a suburban shed into a cleanup site.