Sphere 878 was a Borg sphere ship of the collective in the 24th century. This sphere was destroyed by an order of the Borg Queen in 2377. At the time of its loss, the sphere was in Spatial Grid 091. (VOY episode: "Unimatrix Zero"; Decipher RPG module: Starships)

Borg spheres
Sphere 194Sphere 196Sphere 211Sphere 212Sphere 222Sphere 634Sphere 878S618-05464S618-08467S618-16441S618-16841S618-16851S618-18641S618-18647S618-18741S618-19414S618-19841S618-48615S618-56160S618-61105S618-61618S618-61871S618-64111S618-64164S618-64168S618-68105S618-68106S618-73518S618-76815S618-91444S618-94641unnamed Borg spheres Borg
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