Nuclear bombs do not rely on size, they rely on physics. Here is how chain reactions and hydrogen bombs unleash power on a ...

In the 80 years since World War II, which ended with the use of two atomic bombs, the world has maintained a tenuous relationship with nuclear weapons. Philip Potter, professor of public policy at the ...

Resuming full testing of nuclear weapons - as President Donald Trump called for last week - would be unnecessary, costly, undermine nonproliferation efforts, and empower the nation's adversaries to ...

President Donald Trump’s call for the United States to resume testing of nuclear weapons last week has experts scratching their heads. What did he really mean – exploding a warhead or testing delivery ...

During the campaign, Barack Obama promised to "stop the development of new nuclear weapons; work with Russia to take U.S. and Russian ballistic missiles off hair-trigger alert; seek dramatic ...

WASHINGTON (Reuters) -Iran has launched a speedy clean-up operation at a nuclear-related site in northern Tehran hit by Israeli airstrikes that will likely remove evidence of any nuclear weapons ...

Discussing nuclear weapons earlier this month, Chinese Foreign Ministry spokesperson Mao Ning said the nation “is committed to peaceful development, follows a policy of ‘no first use’ of nuclear ...

After meeting with Israel's Netanyahu, Trump said he'd heard Iran is trying to rebuild its nuclear program, "and if they are, ...

Keep your friends close, but your enemies closer. President Biden said the U.S. won’t use sanctions relief as a tool to re-engage Tehran in negotiations over the 2015 nuclear accord, indicating he ...

After US strikes on three Iranian nuclear facilities and a muted Iranian response, President Donald Trump appeared satisfied Monday that the eruption of violence in the Middle East had finally come to ...