fast/manuevering UFO over Spring, Tx. on night of 5/10/02, 10pmAt approx. 10p (central) over Spring, Tx. (approx. 21 mi. north of downtown Houston, off I-45), I went out on our outside apartment patio to smoke, and after I sat down, I looked up and saw an object moving from left to right in the south sky (moving east to southwest). My immediate reaction was that it had to be an aircraft, but when it suddenly stopped on a dime, and stayed in one place, my changed very quickly about what I was seeing. I wanted to go tell my sister, but was afraid it would go away, and I'd miss what it would do next. I waited then, and it then started moving in a straight line to the east, from it's stationary position I seen it move to. It was then I knew I better get my sister, so at least someone else could see this. My sister came out in time to also watch this dimly lit white object continue to move, more rapidly now in a straight line to the east. This thing was definitely going MUCH faster than any commercial airliner, or Air Force jet ! We watched it getting farther to the east, when suddenly it stopped ! -- and I mean it stopped on a dime, too... about 10 seconds of sitting there, it then started moving back towards us (southwest), but this time it was moving slower....it moved towards us for about 15 seconds, then turned around and started going east again ! It continued at the same slower speed (but still very fast for any flying craft we have - or at least anything to our knowledge that we have).....It kept going this time, moving eastward till we couldnt see it anymore.We waited around 10 mins. for it to come back, but it didnt, and it was a very hot humid night here in Houston, anyway.I went at got the binoculars and will keep them outside from now on.I have a feeling that whoever was contolling this thing, they know they could really go faster than the speed we seen it move..... :) I hope anybody else seen this last night will also come forward.PS : There was a commercial jet flying west to east, much lower than the UFO, but they wouldve had no problem seeing this on such a clear night if they just looked upto their left.