US officials have said a nuclear detonation would render portions of low-Earth orbit useless for up to a year.

Project Pluto was one of the most terrifying weapons concepts ever seriously developed during the Cold War - a nuclear-powered cruise missile designed to fly at Mach 3 for thousands of miles while ...

Iran's supreme leader said Thursday that the Islamic Republic will protect its “nuclear and missile capabilities” as a national asset, likely seeking to draw a hard line as President Donald Trump ...

A woman holds up pictures of the Iranian Supreme Leader Ayatollah Mojtaba Khamenei, left, and his father, the slain Ayatollah Ali Khamenei in a state-organised rally celebrating the birthday of Imam ...

North Korea’s nuclear arsenal is nearing a crucial tipping point: being big enough to possibly overwhelm the ground-based missile defenses the US spent billions developing over the last 30 years.

Turner Industries, the Baton Rouge-based industrial contractor, will relocate its nuclear fabrication business, including the jobs and equipment needed to build the “guts” of nuclear power plants, ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Preview this article 1 min Approximately 500 scientists ...

Nuclear startup X-energy raised $1 billion in its initial public offering yesterday, selling 44.3 million shares for $23 each, a hefty premium above the $16 to $19 per share it was seeking. Initially, ...

Among the many points of disagreement between Iran and the U.S. during the current conflict is the fate of Tehran’s highly enriched uranium (HEU): some 972 pounds of up to 60 percent enriched uranium, ...