Amazing Sight and Long Encounter time - Shape Change of ObjectHere is my sighting, After 17 years I figured I would tell someone. Driving from Illionois to my new base where I was going to be stationend (mcchord afb, Wa) my self and wife at the time where driving along highway 90 towards seattle. at 2:13 am we came out of one of the tunnels on I90 going through the hills and at the side of the road where several cars. We assumed there was a wreck since the roads were snow covered and icy. We slowed down to see if we could assist and saw many people over by the guard rail looking across it. Across the embankment was a large Barrell Shaped Object approximately 30 feet tall. Along the outside were metal "poles" being familiar with electronics I would have classified them as antenna. Aircraft running lights at the tip each being 5-6 feet long with the light at the end blinking slowly like regular aircraft. Underneath the "barrel" (which was upright) where long 20-30 foot lengths dangeling from underneath the bottom of the barrel. The lengths, about 10-15 feet of varying lengths (lack of better description, although they reminded my or the beads commonly hung from doors to act as a divider is the best way to describe it) had a very bright light and appeared to be made of some type of glass or crystal. From the bottom of the barrel a mist was coming out. Much like steam, it made no sound what so ever and hovered free floating above the ground about 10-15 feet. I asked the others how long it been there and they stated it had been there for about 20 minutes just hovering. After another 10 minutes or so, you could hear an audible "clunk" at which point the mass underneath the barrel was pulled up into the device. After another few minutes the barrell changed shape from a barrell to a wedge, much like a heart shaped locket. It tilted sideways and shot, flew was not a good word as the speed was incredible, at the other side of the freeway it titled upright and after several minutes went from the ground level to out of sight into the sky within seconds.