Russia’s nuclear-capable Oreshnik missile system has entered active service, Russia’s Ministry of Defense says, as negotiators continue to search for a breakthrough in peace talks to end Moscow’s war in Ukraine.

Nuclear energy is capturing attention in today's market, but some of the sector's hottest stocks are riskier than others.

Texas-based HGP Intelligent Energy LLC has proposed using naval nuclear reactors from retired warships to supply power for AI data centers

The Museum of Strategic Missile Forces tells the story of how Ukraine dismantled its nuclear weapons arsenal after independence in 1991. Today many Ukrainians believe that decision to give up nukes was a mistake.

In recent years, Pyongyang has tested a range of increasingly advanced weapons, including solid-fueled missiles, highly maneuverable hypersonic reentry vehicles, nuclear-capable warheads, and intercontinental ballistic missiles with extended range.

Kim Jong Un pledges "unlimited" nuclear development as North Korea test-fires new cruise missiles designed to carry nuclear warheads in war preparations.

The reboot of reactor on the Sea of Japan coast will mark a milestone for a nation that suffered one of the world’s worst nuclear disasters.

The debut followed the North’s first test of a new surface-to-air missile and the arrival of a U.S. nuclear-powered attack sub for a port call in South Korea.

North Korea's state media released photos Thursday of what it said was the hull of a nuclear submarine. Its leader denounced South Korea's plans to build its own subs as "an offensive act."

North Korea showed Kim Jong-un at a "nuclear submarine" site; analysts: it aims to justify its nuclear push and cast Seoul's sub debate as a threat.

The Zaporizhzhia nuclear power plant, Europe's largest, is one of the main sticking points in U.S. President Donald Trump's peace plan to end the nearly four-year war between Russia and Ukraine.