History:
Artificially created planetoid manufactured by the Kalandan people some ten thousand years ago. During the construction of the planet,a deadly microorganism killing all of the Kalandans at the outpost. The last survivor, a woman named Losira, set the station's automated defense systems to protect the station for the day when more Kalandans would arrive at the outpost. This defense system killed several Enterprise crew members when the ship surveyed the planetoid in 2268.
TOS "That Which Survives" ; Star Trek Encyclopedia II
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