They are weeks — a small number of weeks — away to enrich that to weapons-grade uranium," Energy Secretary Chris Wright told ...

A new report documents a surge in investment in nuclear weapons even as the world is at war and guardrails on nuclear weapons ...

Russia tested a new long-range missile capable of carrying nuclear warheads, months after the last treaty with the U.S.

Russian President Vladimir Putin has claimed that what he called the world’s most powerful missile system — dubbed “Satan II” ...

President Trump said Americans' financial situation isn't motivating him to make a deal, "Not even a little bit," and that he ...

Vladimir Putin said that the nuclear-armed Sarmat missile would enter combat service at the end of the year. It was built to ...

US officials have said a nuclear detonation would render portions of low-Earth orbit useless for up to a year.

Experts warn any new Iran deal must ban plutonium reprocessing and expose covert pathways to nuclear weapons, citing risks ...

Lebanon and Israel are scheduled to hold another round of direct talks in Washington on Thursday as the Trump administration ...

Against a backdrop of increased tension among the world’s major powers, the risks and effects of nuclear war have received ...

In 1983, the film "WarGames" imagined a teenager who accidentally accessed a Pentagon computer system and triggered a ...

India’s nuclear arsenal has always been modest—large enough to deter China and Pakistan from a first strike, and not ...