Doomsday device
HYPOTHETICAL OBJECT CAPABLE OF DESTROYING ALL LIFE ON A PLANET
Doomsday weapon; Doom's Day weapon; Doomsday Bomb; Doomsday devices; Doomsday devices in popular culture; Doomsday bomb; Doomsday Device
A doomsday device is a hypothetical construction — usually a weapon or weapons system — which could destroy all life on a planet, particularly Earth, or destroy the planet itself, bringing "doomsday", a term used for the end of planet Earth. Most hypothetical constructions rely on hydrogen bombs being made arbitrarily large, assuming there are no concerns about delivering them to a target (see Teller–Ulam design) or that they can be "salted" with materials designed to create long-lasting and hazardous fallout (e.