Keep in mind, this was not a small thermonuclear device, sometimes colloquially called a “hydrogen bomb.” No fissile material ...

That's over 1,600 times more powerful than the largest nuclear bomb ever tested (the Tsar Bomba). The explosion would pulverize billions of tons of basalt rock on the ocean floor, triggering a ...

One prime reason is that leaders of the U.S. armed forces have been so closemouthed about the explosion of the experimental H-bomb last November at Eniwetok that nobody really knows what ...

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen ...

On August 20, 1953, the Soviet press announced that the USSR had tested a hydrogen bomb. Eight days prior in Kazakhstan, the explosive device “Joe-4” put to the Soviet developed “layer cake ...

the atomic bomb. A weapon that devastated the Japanese cities of Hiroshima and Nagasaki. But he was famously opposed to building hydrogen bombs. What makes the two nuclear bombs different?

North Korean leader Kim Jong-un has hailed the recent test of a hydrogen bomb, calling it a “great victory,” the Korean ...

Representatives of Nihon Hidankyo (the Japan Confederation of A- and H-Bomb Sufferers Organizations), which is made up of survivors of the 1945 atomic bombings in Hiroshima and Nagasaki ...