As the cloud cleared, Air Force bombers dropped in to gather air samples. Researchers hoped that the radioactive fallout ...

The Soviet Union built the largest nuclear weapon ever detonated, but just before its test, engineers deliberately reduced ...

Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

In 1961, the Soviet Union detonated the most powerful nuclear weapon ever built. Known as Tsar Bomba, the explosion was over ...

U.S. Energy Secretary Chris Wright said he expects U.S. nuclear-weapons testing sought by President Donald Trump to stop short of actual atomic bomb explosions for now. “I think the tests we’re ...

Editor’s note: “Behind the News” is the product of Sun staff assisted by the Sun’s AI lab, which includes a variety of tools such as Anthropic’s Claude, Perplexity AI, Google Gemini and ChatGPT. On ...

WEST PALM BEACH, Fla. (AP) — New tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions, Energy Secretary Chris Wright said Sunday. It was ...

WEST PALM BEACH, Fla. — New tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions, Energy Secretary Chris Wright said Sunday. It was the ...