During one very unusual Cold War drill, a Soviet Su-7 Fitter attack jet delivered a live tactical nuclear weapon in an end-to ...

Ideas have been floated for how the contaminated zone could bring economic benefits to Ukraine. But for the foreseeable ...

Photographs from the first days of the Chernobyl disaster and of the aftermath years later show the response, the evacuation ...

The two explosions at the Chernobyl nuclear power plant came decades apart in the dead of night. The first, at 1:23 a.m. on ...

Forty years ago, the world’s worst nuclear power disaster exploded into history at the Soviet Union’s Chornobyl nuclear plant ...

North Korea recently launched five short range ballistic missiles (SRBMs) armed with cluster munitions against an island ...

This timelapse revisits a powerful lightning storm, capturing intense electrical activity across the sky in dramatic detail.

SEOUL, South Korea — North Korea said Thursday its testing spree this week involved various new weapons systems, including ballistic missiles armed with cluster-bomb warheads, as it pushes to expand ...

When President Trump withdrew the United States from the Joint Comprehensive Plan of Action in 2018, he cracked the brittle foundation of the global nonproliferation regime based on the 1970 ...

Concerns about the potential for nuclear war have heated up recently after the U.S. and Israel attacked Iran, intending to stop that nation's quest for nuclear weapons. Even prior to the start of the ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. Bradley P. Clawson spent more than three decades handling highly radioactive ...