Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

As the cloud cleared, Air Force bombers dropped in to gather air samples. Researchers hoped that the radioactive fallout ...

At 3:39 p.m. on January 21, 1968, the aircraft slammed into the ice seven miles west of the base. The impact carved a ...

Discover the dramatic story behind the Tsar Bomba, the largest nuclear weapon ever detonated. This video explores its Cold ...

When a nuclear bomb detonates, the devastation is immediate and terrifying. But outside the area of total destruction, the dangers don’t vanish—they change. In buildings that remain standing beyond ...

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 ...

The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the likes of Russia and the United States, it’s a positive one.

Hiroshima is marking the 80th anniversary of the U.S. atomic bombing of the western Japanese city. The bombing on Aug. 6, 1945, killed 140,000 people and a second bomb on Nagasaki (Aug. 9) killed ...

The 80th anniversary of the atomic bombing of Hiroshima and Nagasaki is this week. It was the only time nuclear warheads were used during war. Here’s a look at the history and current U.S. stockpile.

8-year-old Hayawo Kiyama of Los Osos was fishing with his aunt when lightning lit up the sky: "It was wide and thick but ...