Samples of "trinitite" created during the world’s first nuclear bomb test in 1945 contain unique crystals never seen before.

Watch how the first atomic bomb test unfolded, as scientists pushed the limits of physics in a race to end the war. Behind the scenes, there were real fears that the explosion could trigger a chain ...

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

Experts warn any new Iran deal must ban plutonium reprocessing and expose covert pathways to nuclear weapons, citing risks ...

A new report by the Middle East Media Research Institute (MEMRI), published May 4,  focuses on Iranian Majlis member Dr.

India’s nuclear arsenal has always been modest—large enough to deter China and Pakistan from a first strike, and not ...

Letter writers discuss Iran nuclear enrichment, President Trump and White House Correspondents’ Association Dinner.

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 ...

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 ...

Imagine a 150-kiloton nuclear bomb exploded in the city closest to you. Do you know how the city, its surrounding region, and its inhabitants would be affected? If you can't think of much more than "a ...