Nearly half of Americans say they are worried that the U.S. could enter a nuclear war within the next 10 years, according a ...

The global salience of nuclear weapons — once expected to diminish after the Cold War — is instead rising sharply. This revival is testing U.S. power at a moment when Washington faces a more complex ...

As Russia threatens nuclear attacks on Ukraine and NATO, and prototypes a nuclear-armed spacecraft, European space powers are ...