North Korea warned this week that it might test a hydrogen bomb in the Pacific Ocean, after saying the country had already ...

The question of how far is “safe” from a nuclear explosion doesn’t have a simple answer. It depends on the size of the bomb, whether it explodes in the air or on the ground, and where you are when it ...

In 1994, astronomers witnessed one of the most dramatic events ever recorded in space when comet Shoemaker–Levy 9 smashed ...

While it may sound like a bombastic action movie, many genuinely fear a potential nuclear war. Here's a possible Georgia ...

Although President Trump has claimed Iran was weeks away from developing a nuclear weapon, much more work was needed for the country to do so ...

A senior U.S. official offered new details Tuesday night about an alleged nuclear bomb test conducted by China in June 2020. Assistant Secretary of State Christopher Yeaw spoke at a Hudson Institute ...

The most immediate concern is roughly 970 pounds (441 kilograms) of highly enriched uranium containing 60% of the U-235 isotope that is relatively easy to split. That’s what Iran was believed to have ...

Key Points and Summary - The U.S. military has suffered dozens of “Broken Arrow” nuclear weapons accidents—events involving lost weapons, accidental releases, or other serious mishaps. -Most were ...