Nuclear weapons tests are among the most violent events humans can trigger, and that violence leaves fingerprints in the Earth, sea, air, and even in orbit. The physics of shock waves, sound, and ...

Eighty years ago, in August 1945, the cities of Hiroshima and Nagasaki were incinerated by the first and only use of nuclear weapons in war. By the end of that year, approximately 140,000 people had ...

Thankfully, no party has used nuclear weapons in war since 1945. Treaties limiting nuclear tests and weapon inventories during the Cold War highlighted the pragmatism of world leaders. As memories ...

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.

President Donald Trump's comments Thursday suggesting the United States will restart its testing of nuclear weapons upends decades of American policy in regards to the bomb, but come as Washington's ...