Subspace radiation is a form of radiation associated with subspace phenomena.

The detonation of an Omega molecule produced dangerous subspace radiation. As a result, the Omega Directive mandated multiphasic shielding be installed around the warp cores of any responding ships. (VOY: "The Omega Directive")

The enhanced warp drive of the Silver Blood Voyager, brought online in 2375, produced subspace radiation. Though the radiation was harmless to ordinary matter, the Silver Blood that comprised the Voyager's structure and crew began to deteriorate after prolonged exposure. This radiation eventually caused the Silver Blood Voyager's disintegration. (VOY: "Course: Oblivion")

A testing ground for long-range subspace warheads encountered by the USS Voyager in 2378 contained high levels of subspace radiation from the weapons' detonations. This radiation impaired Voyager's ability to form a stable warp field. (VOY: "Human Error")

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