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, ...

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Add Yahoo as a preferred source to see more of our stories on Google. MAJURO, MARSHALL ISLANDS — Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But ...

Navigational warnings indicate that the United States has scheduled its first test of a nuclear-capable, but unarmed, intercontinental ballistic missile (ICBM) after President Donald Trump ordered the ...

Although nuclear weapons are extremely destructive, as was proven when the US bombed Hiroshima and Nagasaki on August 6 and 9, 1945, all rising powers want to have atomic and hydrogen bombs in their ...

Remarks by a top administration official appeared to be aimed at dispelling skepticism of its assertions, as President Donald Trump vows to restart U.S. tests.

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 ...

MAJURO, MARSHALL ISLANDS — Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But living on Rongelap — a remote tropical atoll in the central Pacific ...