The official Korean Central News Agency said North Korean leader Kim Jong Un visited a shipyard to inspect the construction ...

North Korea on Thursday released new images of what it claims is its first nuclear-powered submarine, a massive vessel equal in size to some of the United States Navy’s attack subs.

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 ...

The weapon is the most recent iteration of the Poseidon, a nuclear-powered super torpedo named after the Greek god of the sea ...

MOSCOW(AP) — Russia tested a new nuclear-capable and powered cruise missile fit to confound existing defenses, inching closer to deploying it to its military, President Vladimir Putin said in remarks ...

Facing Trump’s call for a quick ceasefire and bruising, new U.S. sanctions on Russia’s oil industry, Putin is again reminding the U.S. and other Western allies of Kyiv about his nuclear arsenal to ...

From bicycles to rockets, learning through experience – whether human or machine – is shaping the future of space exploration.