Gaelon

Gaelon is surrounded by an extensive ring system. The inner rings are composed pulverized nano-manufactured carbon materials, thought to be the remains of an arthenni helium-3 mining infrastructure. The few pieces of larger debris found indicate a materials technology at least equal to the current galactic state-of-the-art.

The outer rings consist of water-ice, silicate dust, and the odd bit of rock. Analysis of the debris often show shock damage and evidence of rapid heating. Some para-historical theorists insist that the outer rings represent debris from a moon or moons destroyed by a mass accelerator bombardment. This has been rejected by every reputable xenoarcheologist; while it is theoretically possible to destroy a small moon utterly with dreadnought bombardment, no species sees a compelling reason to do so.