The Tsar Bomba's explosion was unparalleled in power. With a 50 megaton capacity, this nuclear test was estimated to be 3,800 ...

The blinding burst of light from a nuclear detonation follows, yet it quickly fades into an unexpectedly small mushroom cloud ...

The U.S. and China possess the world's second- and third-largest nuclear arsenals, with 5,177 and 600 warheads, respectively, ...