On this day 74 years ago, nuclear testing kicked off at the Nevada Test Site, just 65 miles north of Las Vegas.

A thousand feet beneath the desert, the United States conducts experiments to verify that its weapons work. But some fear a ...

If told that the Nevada test site cannot be made ready inside a year, the President may order the above-ground testing of a nuclear weapon—an action prohibited by the aforementioned 1963 Test ...

The U.S. hasn't tested a nuclear weapon in decades, and since the 1990s has used simulations and experiments to verify they're working properly. NPR was granted a rare look at how they do it.

Dave Crete’s story highlights the dangers of explosive nuclear testing (“Veteran telling the story of hidden health risks at Nevada Test Site,” Jan. 5). However, today, the consequences of ...

President Donald Trump's allies are arguing that the United States should resume nuclear weapons testing to send a message to its adversaries. Robert Peters, a research fellow at The Heritage ...

As Trump takes office, issues of arms control, the U.S. arsenal and weapons testing will be on the radar for many nuclear weapons researchers.

A group of journalists were allowed to tour a weapons laboratory deep underground in Frenchman Flat, Nevada. NPR's science correspondent Geoff Brumfiel was among them.

BRUMFIEL: The world's major nuclear powers haven't actually tested weapons in decades ... are conducted underground at the former Nevada test site. BRUMFIEL: ...Where the nuclear tests used ...