Officials backtracked on the terminations Friday after multiple members of Congress petitioned Energy Sec. Chris Wright to ...

The $600 million machine is already online and operational at the Lawrence Livermore National Laboratory in California.

LLNL suggested that the supercomputer could be used “in the absence of underground testing,” and that it was an important component in the design of more modern nuclear weapons, and “other ...

Scientists are debating multiple options to deal with an asteroid which could hit Earth in 2032 – but one is emerging as the ...

A massive American web of orbiting missile interceptors could in theory protect the U.S. from an all-out Russian nuclear ...

Many of the employees affected hold a “Q” security clearance within the Energy Department, meaning they have access to nuclear weapons design and systems. It also included employees at NNSA ...

which oversees the nation's arsenal of nuclear weapons, in a reversal that has fueled scrutiny over Elon Musk's efforts to cut the federal workforce. A spokesman for the Department of Energy ...

WASHINGTON – The semi-autonomous agency that oversees U.S. nuclear weapons production and stockpiling dismissed dozens of employees Thursday after the Trump administration denied a request for a ...

Sen. Ed Markey (D-Mass.) and Rep. Don Beyer (D-Va.) wrote Wednesday to Energy Secretary Chris Wright about reports that ...

It is not the only nuclear weapon the U.S. has misplaced. Not all Broken Arrow incidents involve lost nuclear weapons — for instance, several of the incidents happened in silos holding ...