The United States has quietly taken a dramatic leap in nuclear warfare capability. In a chilling test, an F-35 fighter jet ...

We asked Professor Paul Bracken, an expert in nuclear strategy, what’s behind the posturing and what test explosions would mean for the world.

The U.S. has announced a successful series of flight tests, dropping unarmed B61-12 nuclear gravity bombs from an F-35A stealth fighter at Nevada’s Tonopah Test Range. Conducted in August by Sandia ...

The United States has completed a series of major B61-12 tactical nuclear bomb tests, ordered under President Trump as part ...

Nevada Democrats are pushing for more detail into Donald Trump’s call to resume nuclear testing as members of the president’s administration say publicly that explosive testing is unlikely. Sens.