During the presidential 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 ...

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 ...

Lockheed Martin is responsible for developing the Mk21A reentry vehicle for the upcoming Sentinel ICBM.

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 ...

Energy Secretary Chris Wright revealed the U.S. will not be testing nuclear explosions, putting to rest questions over whether the Trump administration would reverse a decades-old taboo. Testing will ...

The Department of Energy's official watchdog probed the impacts of a timecard fraud scandal that rocked the northern Texas ...

A new map highlights the U.S. nuclear weapons sites that could be significantly impacted by the ongoing government shutdown. The National Nuclear Security Administration (NNSA), responsible for ...

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 ...

President Donald Trump’s announcement that the U.S. would revive nuclear weapons testing — which the U.S. has not done since 1992 — left experts, lawmakers and military personnel scratching their ...

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 ...