US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...

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 ...

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

Last year, President Donald Trump shocked many people when he instructed the government to resume nuclear testing “on an ...

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 ...

Discussing nuclear weapons earlier this month, Chinese Foreign Ministry spokesperson Mao Ning said the nation “is committed to peaceful development, follows a policy of ‘no first use’ of nuclear ...

Add Yahoo as a preferred source to see more of our stories on Google. FILE - In this photo taken from video released by Russian Defense Ministry Press Service on Oct. 26, 2022, a Yars intercontinental ...

Late last week, the U.S. leveled an explosive claim: China is planning secret nuclear weapons tests and has already conducted at least one. China denied the allegations, but experts are worried that ...

The Taleghan nuclear site has been utilized by the Iranian regime to advance its capabilities for developing nuclear weapons.

In 2024 the US believed the Kremlin was developing an “anti-satellite missile tipped with a nuclear warhead for a potential ...