I just happened to look out my window and saw the object flying from the ssw on the south side of des moines, ia. there was no sound associated with the object and it was moving at a steady pace. the object was lower than the flight path of an airplane but also much smaller. it was moving relatively quickly, faster than recreational aircraft i've seen fly at the same height. again, the object was totally silent and could not have been an object like a lantern or balloon as it traveled a perfectly straight path and did not waver in brightness.