missile like fireball seen in Juneau, Alaska.Bright fireball or missile like sighting. Initial observation appeared comet like with bright head and widening tail. Tail was translucent white with an upper and lower portion of roughly equal dimensions. Widest portion of tail was roughly six full moons in width with straight angle tapering to pinpoint at head of object. Object was travelling from west to east in straight line. End of sighting culminated in object brightness dimming quickly and obect arced upward roughly 2 full moons length and fell downward and disappeared. Smoke trail could be seen during arcing. End of sighting.