The Soviet Union built the most powerful nuclear weapon ever created, then deliberately reduced its explosive power before ...

A strange scarlet rock was created during the world's first nuclear explosion in 1945, and scientists have now uncovered what ...

If Iran suddenly developed a nuclear weapon, the geopolitical shock would be enormous — but many analysts argue it still ...

The Trinity bomb test left behind a unique form of matter, and now, scientists have discovered a new chemical structure ...

Al Jazeera spoke with MIT professor Ted Postol about what Iran could do with its 440kg of 60 percent enriched uranium.

Eighty years ago, a weapon was used which would transform modern warfare and the entire world forever. Hiroshima, in Japan, was the target of the first ever nuclear weapon, dropped by the US Air Force ...

Confusion on whether Iran truly needed only “two weeks to four weeks” to make a nuclear weapon, as President Donald Trump suggested on Monday, hangs over the ongoing U.S. and Israeli war on the ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A nuclear bomb map created using a simulation tool shows the ...

President Trump ruled out using nuclear weapons in Iran on Thursday, saying there’s no need. “Why would I use a nuclear weapon when we’ve totally, in a very conventional way, decimated them without it ...

Copenhagen in Jerusalem’s Khan Theatre probes truth, memory, and nuclear ethics through the enigmatic 1941 meeting of Bohr ...