A nuclear submarine can fire a ballistic missile from deep underwater, and the missile never gets wet on the way out

A Trident II D5 missile launches from deep underwater using gas pressure before its rocket ignites above the ocean surface.

Britain is planning a 39-mile, £1.2 billion hydrogen pipeline across its biggest industrial cluster, and backers say it could create up to 1,200 jobs

Britain's £1.2 billion hydrogen pipeline could link major industries, cut emissions, and support up to 1,200 new jobs.

For years everyone thought it was a bend in the Rhine, and then they realized it was a Roman canal that outlived the empire by 300 years

What looked like an old Rhine bend was a Roman canal that stayed in use for centuries after the empire fell, researchers ...

NASA’s Perseverance rover has driven a full 26.2-mile marathon across Mars over five years, and the trail it left is now visible from orbit

NASA's Perseverance rover completes a marathon on Mars as orbit images reveal the remarkable trail left across Jezero Crater.

That painted color line on a brand-new tire actually means something, and it goes back to the factory assembly line

Those colored lines on new tires are factory tracking marks, and their real purpose has nothing to do with safety or ...

The US has more than 800 F-35 jets and a 1.6-trillion-dollar bill, but only 25 percent are fully mission capable, and a scathing GAO report explains why

A GAO report reveals only 25% of U.S. F-35 fighters are fully mission capable despite the program's massive cost.

A $4 billion construction push is quietly turning a remote US Air Force base into the primary home of America’s next stealth bomber

A massive construction project is preparing Ellsworth Air Force Base to become the first operational home of the B-21 Raider.

An American startup says its 5-megawatt fusion engine is ready, and it is inviting independent scientists to prove the reactor actually works

American startup unveils a 5 MW fusion reactor test plan and invites independent experts to verify its performance.

Britain is building four mini nuclear reactors in Nottinghamshire, and together they will quietly power 1.2 million homes from one small site

Britain plans four SMR-300 reactors at Cottam, turning a former coal plant into clean power for 1.2 million homes.

India is boring a tunnel through the Rohtang mountains to divert Chenab water into the Beas, and Pakistan stands to lose every drop

India's Chenab-Beas tunnel could redirect Himalayan water, raising major engineering and geopolitical questions.

Brazil is pushing a bullet train between Rio de Janeiro and Sao Paulo that could hit 220 mph and reshape how a continent travels

Brazil's proposed bullet train could connect Rio and São Paulo in under two hours and transform travel across the country.

Argentina is boring a tunnel through the Andes to revitalise a train that’s been gone for 42 years

Historic Trans-Andean Railway could inspire a new tunnel linking Argentina and Chile after more than 40 years offline.