The Soviet Union built the largest nuclear weapon ever detonated, but just before its test, engineers deliberately reduced ...

The Tsar Bomba's explosion was unparalleled in power. With a 50 megaton capacity, this nuclear test was estimated to be 3,800 times the strength of the Hiroshima atomic bomb. And although short video ...

Alex Wellerstein joins WIRED to answer the internet's burning questions about nuclear science. Which nations have nuclear bombs? Who decides who gets to have nuclear warheads and who doesn't? Why were ...

Russell has a PhD in the history of medicine, violence, and colonialism. His research has explored topics including ethics, science governance, and medical involvement in violent contexts. Russell has ...

Eighty years ago, the US government carried out one of world imperialism’s most horrific war crimes: the atomic bombing of Hiroshima and Nagasaki, Japan. The bombings, on August 6 and 9, 1945, ...

Editor’s note: The Bulletin of the Atomic Scientists presents here, from its September 1946 issue, an eyewitness account of the first atomic bomb test in the Marshall Islands. In it, the author not ...

This oral history is adapted from Garrett M. Graff’s book “The Devil Reached Toward the Sky: An Oral History of the Making and Unleashing of the Atomic Bomb,” which published on Tuesday. Eighty years ...