I saw a small white sphere cross the sky in a straight lineI can't say this is the most interesting UFO sighting in history, but I still can't identify the little fella, so here it is: My friend and I were walking down Maple Street in New Orleans one overcast afternoon (it was more than a year ago and I can't remember the month at all, really). I looked up, probably to check for rain, and saw a white-looking sphere gliding overhead. I thought it was a balloon, or given the nasty weather, a weather balloon, but it was hard to get any sense of distance or scale; the sky was perfectly gray and overcast, and there was no noise. I called my friend's attention to it, and we may have asked a passer by for an opinion (I don't remember). Anyway, although I initially maintained it was a balloon, it flew in a perfectly straight line at a constant speed, all the way across the sky, which I wouldn't expect from something traveling on air currents. I'm an engineer with lots of fluid dynamics experience, and I've seen balloons get carried away in wind. If this sphere was entrained in an air current... well, I haven't seen anything like it. Eventually it disappeared over the horizon; not knowing how high it was, I can't estimate the speed, but it must have been fairly quick. Sadly, there's no abduction to report. If my friend and I were late to where we were going, it was our own fault, as usual.((NUFORC Note: Date is approximate. PD))