The U.S. Navy carried out four scheduled unarmed missile tests of the Trident II D5LE off the coast of Florida last week.

Experts have dismissed claims online that this morning's earthquake off the coast of Russia could have been man made. Accounts on social media have suggested that a botched Russian nuclear weapon test ...

Beijing — China said Wednesday that it would not participate in denuclearization talks with the United States and Russia, after President Trump said he hoped to include Beijing in negotiations. Mr.

The UK is embarking on its most ambitious nuclear expansion in decades. It has committed billions of pounds to new projects, including a large-scale reactor in the southeast, a proposed small modular ...

After Pakistan’s first nuclear test in 1998 landed it under international sanctions and diplomatic isolation, the country turned for help to a longtime ally: Saudi Arabia. Khalid Mahmood, then ...