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