Dark matter was normally harmless, but in 2356, the Romulan Star Empire, with the aid of a Shepherd, developed a cloaking device which produced a mutated strain of dark matter that caused madness and death. (VOY novel: Cloak and Dagger)
|matter • energy|
|States of matter:||solid • liquid • gas • plasma|
|Types of matter:||antimatter • dark matter • protomatter|
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