NASA’s push for a new nuclear rocket engine is not just another upgrade to the hardware we strap to the bottom of spacecraft.

Kim Jong Un unveils a new 8,700-ton nuclear-powered submarine, escalating tensions in the Pacific. Learn how this stealth ...

The Republic of Korea Navy submarine Na Dae-Yong (SS-069) prepares to moor alongside the Emory S. Land-class submarine tender USS Frank Cable (AS 40) at the ROK Navy base in Jeju-Do, Oct. 11, 2024.

If Tokyo acquires nuclear-powered subs, it would be a significant strategic shift for the only nation to have suffered atomic bombings. In this May 31, 2025 file photo, Japan’s then-Defense Minister ...

North Korea displayed apparent progress in the construction of a nuclear-powered submarine, with state media photos showing a ...

President Vladimir Putin said on Wednesday that Russia had successfully tested a Poseidon nuclear-powered super torpedo that military analysts say is capable of devastating coastal regions by ...

For decades, Washington blocked Seoul’s desire for the attack submarines over concerns about nuclear proliferation. President Trump reversed that policy last month, but left key questions unresolved.

I’ve grown up with rockets that burn chemical fuel, but NASA’s next big leap in propulsion could make those engines look as dated as steam trains. By turning to nuclear power in space, the agency is ...