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.

Russia’s invasion of Ukraine and Vladimir Putin’s nuclear threats have the world on edge, but so far, long-standing arms control measures have helped keep the situation from getting out of control.

Climate change is a true existential threat for small island nations, but the US has done little to help the Marshall Islands, which it administered for decades.

What if there was another nuclear incident in the US? A disaster management scholar looks back at the history of nuclear events to assess the risk.