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

The United States has revealed new details about a Chinese underground nuclear test that it claims happened nearly six years ago. The disclosure comes as tensions rise over global nuclear arsenals ...

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 ...

J. Robert Oppenheimer led the scientific effort that created the world’s first atomic bomb during World War II. The Trinity test in 1945 produced an explosion equal to nearly 25,000 tons of TNT, ...

A DF-17 road-mobile medium-range ballistic missile is seen during a military parade in Beijing's Tiananmen Square on September 3, 2025. China may want to develop new nuclear warheads for its ...

WASHINGTON, Feb 17 (Reuters) - A senior U.S. official on Tuesday revealed what he said were new details of an underground nuclear test blast that China allegedly conducted in June 2020. Assistant ...

GENEVA — A U.S. official focusing on arms control on Monday provided what he called new, declassified details of a Chinese underground nuclear test nearly six years ago and urged countries to press ...

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 ...