Hydrogen bombs cause a bigger explosion, which means the shock waves, blast, heat and radiation all have larger reach than an atomic bomb, according to Edward Morse, a professor of nuclear engineering ...

SEOUL, South Korea (AP) – 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 ...

In 1954, the United States detonated Castle Bravo at Bikini Atoll expecting a far smaller blast, but the weapon exploded with a 15-megaton yield and became the largest nuclear test in U.S. history.

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 ...

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 ...

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 ...

"Such actions are fraught with further aggravation of the situation on the Korean peninsula, which is anyway marked by very high potential of military and political confrontation," said the ministry's ...

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 ...

Pyongyang last night conducted its first test of a hydrogen (thermonuclear) bomb. The device was ten times more powerful than any of those detonated in North Korea’s five earlier atomic (fission) ...

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 ...

Christopher Hill receives funding from the Office for Veterans' Affairs, UK Cabinet Office. The research for this article was also supported by funding from the Arts and Humanities Research Council ...