The Starfish Prime test in 1962 showed how dangerous it would be to detonate a nuclear weapon in space.

Russia isn’t likely to put nuclear missiles in space, but their reported anti-satellite weapon is just as alarming. An expert on nuclear strategy explains.

Civil nuclear energy maintains the skills and supply chains needed for nuclear subs and weapons.

Since 1947 the clock’s hand have been set at the beginning of every year.

Nuclear weapons production and testing contaminated many sites across the US and exposed people unknowingly to radiation and toxic materials. Some have gone uncompensated for decades.

Depleted uranium munitions are bad news for enemy tanks, but are not nuclear weapons, and studies have shown that they pose low risks of radiation or chemical exposure.

Survey study of awareness in UK and US populations also shows that brief exposure to latest data on ‘nuclear winter’ deepens doubts over nuclear retaliation.

More than 5 billion people would die of hunger following a nuclear war between the US and Russia, according to a new study.

Scott Sagan digs into Russia’s nuclear threat in the country’s war of aggression in Ukraine and how Vladimir Putin is "the most dangerous man in the world."