President Trump has directed the Pentagon to resume nuclear weapons testing, ending a 30-year moratorium. Citing the nuclear ...

SEOUL, South Korea — Soon after the ground shook around its nuclear testing facility, North Korea trumpeted its first hydrogen bomb test — a powerful, self-proclaimed "H-bomb of justice" that would ...

Richard L. Garwin, a designer of the first hydrogen bomb, died Tuesday, his daughter-in-law, Tabatha Garwin confirmed to CBS News. The renowned scientist was 97 years old. A prominent scientist who ...

Here’s What You Need to Know: Skies were clear, and the modified U-2Gs preformed well, snapping photos of the French test site without being detected. They snapped photos of the day... Here’s What You ...

TOKYO (AP) — North Korea says it successfully detonated a hydrogen bomb in its latest nuclear test Sunday. Outside experts haven't been able to verify that claim, but say it's plausible. If true, it ...

SEOUL, South Korea — North Korea’s declaration that it had tested a hydrogen bomb for the first time was greeted with widespread condemnation — but also skepticism — as world powers vowed Wednesday to ...

This story originally appeared on April 1, 1954, in the Winona Republican-Herald, a predecessor of the Winona Daily News. WASHINGTON (AP) — The government disclosed today details of the world’s first ...