The National Nuclear Security Administration (NNSA) has successfully produced its first purified enriched uranium "button" through a process called electrorefining, as part of what officials called ...

As strikes continue on Iran’s nuclear facilities, the real danger isn’t the explosion, but what happens if critical safety ...

FILE - In this Sept. 2007 file picture an anti-aircraft gun position is seen at Iran's nuclear enrichment facility in Natanz, Iran. Iran has put finishing touches for the installation of thousands of ...

Tensions around Iran’s nuclear program have intensified following renewed military action and stalled diplomacy. While Iran ...

Just days before the February 28 U.S. strikes on Iran, Iranian officials were hinting a nuclear deal with Washington was possible. Tehran and Washington had restarted Omani-brokered talks in February ...

Editor’s note: This is the second of a two-part series on a controversial 1969 nuclear test in western Garfield County. The first story appeared in Sunday’s Aspen Daily News. Jay Cowan and Judy Haas — ...

US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...

Liquid-fueled molten-salt reactors, another new type, could increase waste volume too. In these designs, fuel and coolant are ...