Since McLaurine Pinover became the Office of Personnel Management’s director of communications, she’s been one of the highest ...

Protesting Democrat expelled from chamber after bringing speech to a halt - President delivering address to join session of ...

Firings and buyouts hit the top-secret National Nuclear Security Administration amid a major effort to upgrade America’s nuclear arsenal. Critics say it shows the consequences of heedlessly ...

Chinese nuclear engineers have discovered a critical inefficiency issue in Nasa’s lunar nuclear reactor design – but, they claim, minor structural adjustments could slash fuel consumption by ...

KHAMENEI.IR/AFP via Getty Images We genuinely hope Iran’s rulers react seriously to President Donald Trump’s letter urging them to come to a rapid agreement to abandon their nuclear-weapons ...

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Among the reasons the world is thought to be at risk include the possibility, however slim it might be, of nuclear war. And much like pandemic planning, every major western government does have ...

Iran’s Ayatollah Ali Khamenei says the United States’ offer to hold talks on its nuclear programme is an attempt to deceive global public opinion, as a letter arrived from US President Donald ...

It’s a remarkable turn of events that portends a new nuclear landscape. America’s European and Asian allies haven’t contemplated their nuclear futures this earnestly — and openly — since ...

Physicists have measured a nuclear reaction that can occur in neutron star collisions, providing direct experimental data for a process that had previously only been theorized. The study ...