Hydrogen bombs cause a bigger explosion, which means the shock waves, blast, heat and radiation all have larger reach than an ...

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

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 ...

Beyond roughly 4 to 5 kilometres, the immediate blast effects weaken significantly. Windows may shatter and some buildings may be damaged, but the chances of surviving the initial explosion improve ...

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 ...

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 ...

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 ...

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