After he drew up the hydrogen bomb, he went back to Chicago and walked around his bedroom, wondering what to do with his life. He’d done fundamental particle physics, but booking the cyclotron ...

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.

Richard Garwin’s role in designing the hydrogen bomb was obscured from the public, even his family, as he advised presidents and devoted his life to undoing the danger he created. Richard L ...

A hydrogen bomb, also known as a thermonuclear bomb, can create explosive force hundreds or even thousands of times greater than an atomic bomb. Here's how the H-bomb contains such massive power.

The first hydrogen bomb tested by the United States in November 1952 released the equivalent energy of 10,000 kilotons (or 10 megatons) of TNT.

A hydrogen bomb can be far more powerful than the atomic bombs the U.S. dropped on Japan in World War II. The U.S. conducted the first successful tests of hydrogen bombs in the 1950s.

If an H-bomb hit New York City, the death toll could reach over 1.7 million. When North Korea test-launched a second intercontinental ballistic missile (ICBM) last Friday, ...

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 ...

The bomb, believed buried in 10 to 15 feet of mud at the bottom of the sea, became one of 11 "Broken Arrows" — nuclear bombs lost during air or sea accidents, according to U.S. military records.

A hydrogen bomb has never been used in battle by any country, but experts say it has the power to wipe out entire cities and kill significantly more people than the already powerful atomic bomb ...