The detonation of a nuclear weapon on Vulcan in the 4th century

A nuclear weapon (also called atomic or thermonuclear weapon) is an explosive device which employs either nuclear fission or nuclear fusion in order to create a destructive blast and/or emit high doses of lethal radiation.


The Vulcan species developed the technology early in their warfarring history but rather then engage in a widespread disarmament program, they instead developed lesser forms of the "dirty weapons" such as neutron weapons designed to kill organic matter but leave the resources as well as structures behind. (TOS novel: Spock's World)

Earth first developed nuclear weaponry in 1945 when the United States of America, under a program codenamed the Manhattan Project, created and detonated a device in Trinity, New Mexico. Two more nuclear bombs were then used against Japan to expedite the ending of World War II. Though the United States had only built two bombs by this point, their intention was to create the illusion that they had many more in its arsenal. (SCE eBook: Lost Time)

A test detonation of a fission weapon in July 1947 enabled Quark, Rom, Nog and Odo return from that period to 2372. (DS9 episode: "Little Green Men")

The United States attempted to place a nuclear weapons platform into Earth orbit in 1968, but this plan was sabotaged by Gary Seven. (TOS episode: "Assignment: Earth")

Nuclear weapons were also extensively used during World War III.

In 2155, the Romulans used nuclear weapons against Earth's NX-class starship Discovery, leading to its destruction. Romulan vessels continued to carry such weapons into the 23rd century. (ENT novel: Beneath the Raptor's Wing, TOS episode: "Balance of Terror")

Mirror universe nuclear weapons test

The detonation of a nuclear weapon in the mirror universe

In the mirror universe, the Terran Empire frequently made use of nuclear weapons. (ENT episode: "In a Mirror, Darkly")

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