Next month it will have been 80 years since the Japanese cities of Hiroshima and Nagasaki were devastated by nuclear attacks.

The American reaction to an attack is classified, but details made public paint a harrowing picture.

With the U.S. intervening in Middle Eastern conflict, there are threats of retaliation. Here's how to stay safe in the event ...

The team simulated a nuclear explosion from a 750-kiloton atomic bomb. For reference, the bombs the US dropped at Hiroshima was 15 kilotons and at Nagasaki was 25 kilotons.

After a nuclear explosion, fallout and EMPs disrupt life, making survival a challenge as radiation, food shortages, and ...

Actions immediately following a nuclear bomb blast amid fallout could help you survive. Nuclear weapons remain an ever-present threat. To date, only the US has ever dropped nuclear bombs on a ...

The underwater Baker nuclear explosion on July 25, 1946, created a huge mushroom-shaped cloud that spread radiation far and wide. Image taken from a tower on Bikini Island.

The largest nuclear explosion ever detonated was the Soviet Union’s RDS-220, or Tsar Bomba, a 50 megaton hydrogen bomb. That test explosion took place over an Arctic Ocean island on Oct. 30, 1961.

While it is the main source of danger in a non-nuclear explosion—like the one that rocked Beirut in 2020, which was caused by a large quantity of flammable ammonium nitrate stored at the city ...

Four stations went down in the days after the explosion of a suspected nuclear-powered cruise missile. Two sites went dark on Aug. 10, with two more stopping transmission of data on Aug. 13.

As a 9-year-old on an island between Hawaii and Australia, Tony deBrum witnessed the explosion of the largest bomb ever detonated by the United States. The “Castle Bravo” nuclear weapon was ...