My favorite mysterious light sources is a triplet off the coast of Newfoundland: https://www.lightpollutionmap.info/#zoom=6&lat=5798060&lon=-5275970&layers=B0FF

My favorite mysterious light sources is a triplet off the coast of Newfoundland: https://www.lightpollutionmap.info/#zoom=6&lat=5798060&lon=-5275970&layers=B0FFFFFTFFFFFFFF https://www.lightpollutionmap.info/#zoom=6&lat=5798060&lon=-... I assume it's some sort of offshore rig.