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Chofan is an unusually small hydrogen-helium gas giant, with traces of sulphur and hydrocarbons in the atmosphere. The Alliance surveyor ship Ibn Battutu reported inconclusive evidence of hydrocarbon life in the deeper layers of the atmosphere (over 1000 kilometers below the cloud tops), where pressure compresses Chofen's hydrogen into a liquid state.
Proof of life in this environment would prove many long-standing theories. Unfortunately, only a probe with extremely expensive mass effect generators could survive the crushing pressure long enough to send back any useful data - and the probe would be lost in the attempt. Simple expense makes investigation doubtful.