text: Yes.  My exhusband and I were driving from Louisiana to Wisconsin.  We were on I-57 at night.  We were both prior military so we know what aircraft looks like.  Anyways, there was a vessile of some sort about 3-5 miles up parallelling us for about 20 miles or so.  No blinking lights but there was a light that we couldnt explain.  After about 20 miles, it was gone suddenly.  The sky was crystal clear and there were no airports around at all so we know it wasnt a plane.  Sure kept us awake the rest of the night.