Nuclear Weapon | featured news

The United States, Russia, Britain, France and China on Wednesday voiced support for making the Middle East a nuclear-arms-free zone, which would mean Israel would have to scrap any atomic bombs it has.

The United States disclosed for the first time on Monday the overall size of its nuclear arsenal, saying it had a total of 5,113 warheads operationally deployed, kept in active reserve and held in inactive storage.

Global nuclear conference that opens today is shaping up as a showdown between Iran and U.S.

The Obama administration is likely to reveal a closely guarded secret -- the size of the US nuclear stockpile -- during a critical meeting starting Monday at which Washington will try to strengthen the global ...

The new weapons system is designed to hurl a conventional warhead of enormous weight at high speed and with pinpoint accuracy, without crossing the nuclear threshold.

The US military says Iran would need between four and six years to produce a usable atomic bomb.

Big power envoys were to meet on Wednesday to pursue the quest for fresh U.N. sanctions to try to halt Iran's nuclear program, but diplomats forecast weeks of haggling over a text the Security Council can pass.

At nuclear summit, Obama calls on governments to embrace action to prevent nuclear materials from falling into hands of terror groups.

As the White House pushes for cuts in the U.S. nuclear arsenal, the Pentagon is developing a weapon to help fill the gap: missiles armed with conventional warheads that could strike anywhere in the world in less than an hour.

Sweeping pact pledges to cut stockpile of deployed, strategic nuclear weapons and commits the old Cold War rivals to new verification procedures.