Once protected by its nuclear umbrella, America’s closest allies are now threatened by it and contemplating their own nuclear ...

In the 80 years since, no other nuclear bomb has ... for a nuclear strike and reminded the world of the power of nuclear weapons to intimidate adversaries. Fortunately, senior physics writer ...

“As of April 2025, Iran has a stockpile of enriched uranium which means that the country has enough material for around six ...

Yet increasingly, nuclear weapons are being sought by countries ... The first 20 percent is actually the hardest hurdle to overcome. The last 80 percent doesn’t take much time,” Costlow ...

Many scientists say “subcritical” experiments and computer simulations make nuclear weapons testing unnecessary.

According to several of the sources, German forces placed many concentration camp prisoners at the test site as human guinea pigs ...