A deuterium-rich nebula where the Enterprise and Farragut were sent in 2259 to start up a refuelling station, unaware that life forms lived within the gas.
Bannon's Nebula is the setting of the Strange New Worlds episode Lost in Translation. Starfleet has built a large collection and refining station there to supply deuterium for ships heading out to the frontier, and the USS Enterprise, with Pike acting as fleet captain, arrives alongside the USS Farragut to get it working.
As the station nears completion Nyota Uhura begins hearing sounds and seeing frightening visions, including her dead friend Hemmer. A lieutenant from the station, Ramon, suffers the same effects more severely, sabotages the Enterprise and is killed.
Uhura, helped by the visiting James Kirk, works out that the visions are messages. Beings from another dimension live in the nebula's deuterium and are being destroyed by the refining. Pike orders the station evacuated and blown up. The episode also brings James Kirk and Spock together for the first time.