Iran and the United States prepared for a fifth round of negotiations over Tehran’s rapidly advancing nuclear program Friday ...

In Seoul, Tokyo and even Taipei, a once-unthinkable idea — building nuclear weapons — has begun to look disturbingly pragmatic.

Richard Garwin drew up the plans for the hydrogen bomb and spent seven decades advising presidents on scientific matters ...

Iran has multiple major sites associated with its rapidly advancing nuclear program, now the subject of several rounds of ...

Iran and the United States will hold talks Friday in Rome, their fifth round of negotiations over Tehran’s rapidly advancing ...

Iran and the United States will hold a fifth round of talks in Rome on Friday over Tehran’s rapidly advancing nuclear program.

Advisors to the president might try to convince Trump that there is a shortcut that lets him claim historic victory without ...

Across the United States, the Cold War left a toxic inheritance: sprawling sites poisoned by the pursuit of nuclear power and ...

Production of the WWII atomic bomb was “need to know”, limited to physicists and engineers for security.  The two fission bombs immediately killed about a quarter million Japanese.

Many scientists contributed to the final result, but he was the one who, as a young physicist, designed the world’s most ...

The United States dropped its second atomic bomb on Nagasaki on Aug. 9, 1945, three days after the first bombing of Hiroshima, together killing more than 210,000 people. Japan surrendered on Aug ...

Even though he considers himself well read in history, Eastern graduate Tim Harrington was not aware of the effects the ...