What is a hydrogen bomb? A look at the latest potential threat from North Korea The US first tested the weapon in 1952, and the USSR followed a year later.

North Korea claims hydrogen bomb test. USA Today/Associated Press. Apple Scales Back Orders for Its iPhones. Component suppliers that rode the iPhone’s boom are now bracing for lower sales.

The technology of the hydrogen bomb is more sophisticated, and once attained, it is a greater threat. They can be made small enough to fit on a head of an intercontinental missile. "That the bomb ...

In 1952, the United States detonated its first full-scale H-Bomb, a Teller-Ulam thermonuclear device code-named Ivy Mike, on Enewetak Atoll. Photograph courtesy Los Alamos National Laboratory ...

How are a hydrogen bomb and a regular atomic bomb different? And why would that matter to the United States and its allies? Here’s what the experts say.

If North Korea really has tested a hydrogen bomb — a claim that experts dispute — it would become just one of a small number of nations to have successfully tested the powerful nuclear weapon ...

On Nov. 1, 1952—63 years ago this week—the U.S. detonated the first hydrogen bomb, resulting in the first successful full-scale thermonuclear weapon explosion. Operation Ivy was conducted on ...

North Korea says it successfully detonated a hydrogen bomb in its latest nuclear test Sunday. But what is a hydrogen bomb? Here's a brief explanation.

Chinese researchers have detonated a new non-nuclear hydrogen bomb capable of generating a sustained, ultra-high-temperature fireball, marking a significant leap in military and energy technology ...