A UFO was spotted over Northwest Houston and the sighting was reported to MUFON (case 82995). Unfortunately the witness testimony is somewhat vague, but a photo showing a saucer-shaped silver craft was uploaded. One great detail the witness did include about the object was that it was "spinning":
I was driving home from work in stop and go traffic headed north, and noticed the object towards the right side of my viewing range. The object was moving to the west. There were airplanes flying towards Bush airport (northeastern direction), and we're smaller than the object, which was under the airplanes flight path. It seemed to move in a spinning or rotating motion, with a hazy, glowing appearance. It eventually moved to the left side of my viewing range, in a 3 minute span. I had to veer to the right, as the road turned, and I lost sight of it.
It's hard to say what this is without more detail from the witness, but perhaps you can help crack this case. Do you live in the Houston area? Did you see this? Report your sighting!