North Korea said Sunday it had tested a hydrogen bomb which it can mount on a missile, declaring "perfect success" in its biggest-ever nuclear detonation. Pyongyang has long sought the means to ...

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 ...

Chinese researchers have successfully tested a non-nuclear hydrogen-based bomb, producing a fireball that burned over two seconds – 15 times longer than a comparable TNT blast. Developed by the China ...

North Korea released a statement early Wednesday asserting that they have successfully tested a hydrogen bomb, “a measure for self-defence the DPRK has taken to firmly protect the sovereignty of the ...

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 ...