I don't believe this to be extraterrestrial in nature (however that would be awesome if it was) however, myself and 3 others were outside smoking and noticed a burning object heading west. It appeared to be a fireball with an 'arm' waving around it. It was moving slowly across the sky at about 500 feet. It stopped at one point and seemed to spin around several times and then moved in a northerly direction. After awhile something started falling off of it, like pieces of it were burning and dropping off. It eventually, slowly however, moved to the north and disappeared behind a cloud. Our guesses were a hot air balloon (but why would it be out this late at night), a blimp, weather balloon, etc., but it seemed to be too low to the ground and again, if it was on fire, why are there no other reports of it at this point? I hope someone can get to the bottom of this. We contacted 911 believing that there was an aircraft of sorts in trouble but it was gone by the time they arrived and they left without incident. I can't find anything on local papers or news websites that are updated frequently. Has anyone else reported anything? Was there some sort of an accident or did we in fact maybe witness something 'otherworldly'?