About Ariel and the strange signals people are talking about... I spent quite a bit of time down in those canyons, and although it was utterly amazing, couldn't find anything out of the ordinary. The wave scans all seemed normal, but I did hear strange noises and to me unknown scanner sounds out of POI's, but it was finally only a nav beacon encrusted in a very steep wall which was making those noises. As I had never encountered one before, it sure gave me the creeps in that dark canyon. Could finally only find it with the ship...