SEOUL, South Korea (AP) — 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 ...

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 ...

SEOUL, South Korea — North Korea says it has conducted a hydrogen bomb test. The surprise announcement that complicates already difficult efforts to curb the country's push for a working nuclear ...

The test likely pushed Pyongyang's scientists and engineers closer to their goal of building a warhead small enough to place on a missile that can reach the U.S. mainland. But South Korea's spy agency ...

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 ...

New Delhi: A major revolution in the arms race came when America invented the atomic bomb. The devastation caused by this weapon in Hiroshima and Nagasaki in Japan shocked the entire world, though it ...

Ann Finkbeiner is a science writer who often writes about the intersection of science and national security. In 1951, Richard Garwin was 23, a junior physicist working summers at Los Alamos National ...

SEOUL, South Korea (AP) — 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 ...