A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground ...

The timing of the earthquake has sparked speculation on social media, particularly given the ongoing conflict involving Iran, Israel and the United States.

Speculation is growing after more than 100 mysterious earthquakes were recorded near a secretive U.S. military testing range close to Area 51 in Nevada. The unusual seismic activity has sparked online ...

Beijing and Moscow build their arsenals while the U.S. restrains itself.

Does a video show a nuclear test carried out by the Islamic Revolutionary Guard Corps (IRGC) in Iran? No, that's not true: The video clip shows a nuclear test in the Nevada desert in 1957. The ...

A 4.3 magnitude earthquake in Iran’s Gerash region has ignited global speculation amid escalating U.S.-Israel strikes on ...

The United States military has tested its Minuteman lll nuclear ballistic missile at Vandenberg Space Force Base in ...

VIENNA (AP) — The United States and Russia have both recently threatened to resume nuclear testing, alarming the international community and jeopardizing a global norm against such tests. Experts say ...

In 1954, the United States detonated Castle Bravo at Bikini Atoll expecting a far smaller blast, but the weapon exploded with a 15-megaton yield and became the largest nuclear test in U.S. history.

America’s last nuclear detonation was nothing special. Smaller than the bomb that killed 73,000 people in Nagasaki, it exploded 1,397 feet below the Nevada desert. It shook the ground, created a ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Speaker 1: From the opinion pages of the Wall Street Journal, this is Potomac ...