UNS Battleplate Tunguska
The Tunguska is/was a UNS Battleplate.The basic geometry of the Tunguska is the polyhedral simplex, a triangle. Tunguska is about eight kilometers to a side and just under a kilometer thick 2004-02-25.
The Tunguskas A.I. is Gus, quite humorous and literate but with a mean streak 2004-02-29.
Destroyed by the Pa'anuri in the Zoojack system 2004-03-12.
Other notable appearances
[This space is reserved exclusively for Howard!]
Named after the Siberian Tunguska meteoric air-bust event
Judging by the given measurements of the sides, the annie plants are at least 1.22 km in apparent diameter, even assuming that the visible portion on the top is one full hemisphere. It seems likely that they are much larger given the angle they are shown in the first appearance, but the annie plants do seem smaller from the bottom 2004-02-24.