On the way home driving on the katy freeway near grand parkway had looked up at the sky and saw what looked like a blimp at first or something flying. we then realized it was not a blimp. the closer we drove towards it it looked farther away, yet it appeared to be in one place and hovering. it appeared to have this white glow around in a sideways egg shape. you could also see a couple of smaller red and blue lights flashing. it never appeared to be moving or doing anything, just hovering and staying in one place. although we drove towards it, we couldn't reach it at all. during the sighting we were really confused, but intrigued. having to ask each other if we were seeing the same thing which we were. we both came to the conclusion it was not a airplane or a blimp or anything that we could recognize. it had all the characteristics of a ufo. as we continued to drive home we just kept talking to each other and convinced we saw something out of the ordinary. and as we changed directions and headed home we got further and didn't look anymore.