The hydrogen bomb, unlike the atomic bomb used on Hiroshima, generates energy through fusion by fusing isotopes of hydrogen, deuterium and tritium. This fusion process requires extremely high ...

The Soviet Union detonated the most powerful nuclear weapon in the history of humankind, the Tsar Bomba, on October 30, 1961.

SEOUL, South Korea — North Korea says it has conducted a hydrogen bomb test. The surprise announcement that complicates already difficult efforts to curb the country's push for a working nuclear ...

Will President Donald Trump's orders to the US military test nuclear weapons after a 33-year gap restart a nuclear test race?

President Donald Trump ordered the U.S. to resume nuclear testing for the first time since a moratorium was declared in 1993.

Dr. Tanaka is a chair of Nihon Hidankyo, the Japan Confederation of A- and H-Bomb Sufferers Organizations. I was 13 years old on Aug. 9, 1945, when the United States dropped an atomic bomb on Nagasaki ...