Investigating mystery triangle UFO spotted above U.S. marine base

bermuda triangle,bermuda triangle mysteries,mystery,ufo spotted ‘hovering over sea in alaska’,bermuda triangle explained,bermuda triangle documentary,bermuda triangle edition,floating triangles,bermuda triangle challenge,bermuda triangle supernatural,bermuda triangle episode 1,ufo spotted,mystery wire,ufo investigation spotlighted,alien base found,illuminating lights point to strange alien activity,ufo investigation,mysterious ufo sightings