Trump’s envisioned multilayered “Golden Dome” could include space-based sensors to detect missiles. They could reduce the U.S ...

From hypersonic glide vehicles to solid-fuel ICBMs, these weapons are compressing challenging global missile defense systems.

Small nuclear reactors are pitched as cheaper, safer, faster and easier to finance than their conventional counterparts. Hype around them is building fast, but some experts warn it ignores fundamental ...

The discussions have taken on new urgency as President Trump escalates his criticism of Europe. Germany and Poland already have suggested France’s nuclear weapons could be expanded to defend their ...

Nature’s annual list of technologies to watch is a chance to celebrate progress and stimulate research into both ...

Japan is reviving nuclear power, balancing the need for more clean energy against the lingering trauma of the 2011 Fukushima ...

South Korean President Lee Jae Myung said North Korea continues to produce nuclear material at a pace that could allow it to ...

Decades after the Cold War ended, U.S. defense planners concluded that deploying massive megaton-yield gravity bombs over Europe was no longer realistic, leaving much of America’s nuclear arsenal ...

Nuclear weapons are the single-most destructive explosives humanity has created and deployed in warfare. Because of their destructive power that can wipe away whole cities, you'd think that the United ...

A pair of lawmakers exhorted the Energy Department's top official to consider reining in a major nuclear arsenal modernization program amid long-running concerns over its cost and schedule performance ...